Through the Hard Seasons of Marriage, Lesson 8. Read Gen 39:1-12. You're talking more and more with a colleague, an ex, or someone you met online; you know it's wrong but can't bring yourself to stop.
Main passage: Gen 39:1-12
Joseph refused his master's wife, saying, "How then can I do this great wickedness, and sin against God?" He not only refused but would not "be with her," and in the end left his garment and ran outside. Emotional affairs, online or close at hand, often begin one message at a time. In Christ we can turn away early, and for those who have already crossed the line there is a way of confession and return.
After a class reunion you add an old classmate on WeChat. At first you just reminisce; later you talk about everything, even things you have never told your spouse. Or it's a colleague who understands how tired you are better than the person at home does, so you stay a little later after work and talk a little more. At night in bed you're still replying to messages, and when you've finished you delete the chat history. You know it isn't right, but you tell yourself "we haven't done anything," and you can't bring yourself to end it. Some have already crossed that line and don't know what to do.
In Genesis 39, Joseph has been sold into Egypt and is a slave in the house of Potiphar, captain of the guard. The chapter begins by saying "Yahweh was with Joseph" (Genesis 39:2), and when his master saw that everything he did prospered, "all that he had he put into his hand" (Genesis 39:4). Then his master's wife set her eyes on him and tried again and again to seduce him. Joseph's answer was:
No one is greater in this house than I am, and he has not kept back anything from me but you, because you are his wife. How then can I do this great wickedness, and sin against God? (Genesis 39:9)
Joseph saw two levels. One was human: his master had entrusted everything to him, and he could not betray that trust. The deeper level was God: this would above all be a sin against God. Crossing the line is never only a matter between two people; it wounds the spouse and family who trust us, and it is sin before God.
The seduction didn't stop after one attempt: "As she spoke to Joseph day by day, he didn't listen to her, to lie by her, or to be with her" (Genesis 39:10). Joseph not only refused to lie with her; he avoided even being with her. The text doesn't tell us how he assessed himself; it only records that he refused, kept away from her, and in the end fled. Today, "being with" someone often happens not in the same room but on a phone: late-night private chats, secrets only two people know, deleted chat history.
One day, when no one else was in the house, she caught hold of his garment, and Joseph "left his garment in her hand, and ran outside" (Genesis 39:12). Running is sometimes the most spiritual response. Proverbs puts it bluntly: "Can a man scoop fire into his lap, and his clothes not be burned?" (Proverbs 6:27). Stand by the fire long enough, and you will get burned.
This story did not lead straight to a happy ending. The woman turned the accusation on Joseph, and he was put in prison (Genesis 39:20). Doing what is right doesn't necessarily bring an immediate reward; but the text goes on: "But Yahweh was with Joseph, and showed kindness to him" (Genesis 39:21). Joseph did not lose God by refusing.
One more thing must be made clear. In this story Joseph is someone being pursued again and again by a person with more power than he had. Today, those who are harassed or pressured by a boss or anyone else at work are not the ones crossing the line; they need protection and help. They can keep evidence and seek help from trustworthy people, their workplace, and the relevant authorities.
If you have already crossed the line, the gospel has not shut the door. John says, "If we confess our sins, he is faithful and righteous to forgive us the sins, and to cleanse us from all unrighteousness" (1 John 1:9). Turning back is real: confessing before God, ending the relationship, bearing the consequences that are yours to bear, and not blaming your spouse for "not caring about me." Whether and how to tell your spouse involves their pain and the safety of the home, so it is best first to talk it over with a mature pastor or experienced counsellor, rather than rushing to handle it alone.
Whether we turn away early or turn back after falling, neither depends on how strong we are. Paul says, "God is faithful, who will not allow you to be tempted above what you are able" (1 Corinthians 10:13). Christ bore our sins, and he gives the Spirit to help us run.
1. "Yahweh was with Joseph." Verses 2 and 3 say this twice, and verse 21 says it again when he is in prison. The narrative keeps stressing God's presence; it does not turn it into a formula for how Joseph resisted temptation.
2. Joseph saw two levels. In verse 9 he first speaks of his master's trust, then of "sin against God." Crossing the line betrays people, and above all sins against God.
3. "Or to be with her." Verse 10 says the seduction came day by day; Joseph did not only refuse, he avoided chances to be alone with her.
4. Running, leaving his garment. In verse 12 Joseph would rather lose his garment than stay. That garment later became the evidence used to accuse him falsely; the cost of running was real.
5. Doing right doesn't necessarily bring an immediate happy ending. In verses 13-20 Joseph is falsely accused and imprisoned, yet verse 21 says Yahweh was with him and showed him kindness.
Opening words (leader reads)
What we share in the group stays in the group. There is an exception: if there is ongoing harm, a risk to a child or vulnerable person, or immediate danger of self-harm or harm to others, the leader cannot promise complete confidentiality. Normally, the leader will first try to discuss this with the person and share only necessary information with those who can actually help. If a child or someone unable to protect themselves is involved, or there is immediate danger, do not wait for consent. Contact a pastor, qualified professionals, local police, emergency services or medical services as appropriate. In immediate danger, get help straight away and do not leave the person alone.
Warm-up: Who are the five people you chat with most on your phone? (No need for names; just say what the relationship is; first-time visitors can share too)
Leader note: Keep it light; some will find that work groups and parents' groups top the list, and their spouse isn't on it at all. A laugh is fine. Then add one sentence: whoever we give the most words to is often whoever we give our heart to.
Lesson recap (leader reads, about 1 minute, for those who didn't prepare)
This lesson covers Genesis 39:1-12. Joseph was sold into Egypt, into the house of Potiphar, captain of the guard; Yahweh was with him, everything he did prospered, and his master put everything he had into his hands. His master's wife set her eyes on him and asked him to lie with her. Joseph refused, saying: my master has entrusted everything to me and kept back nothing but you, because you are his wife; how then can I do this great wickedness and sin against God? She spoke to Joseph day after day, but he would not listen, and would not even be with her. One day, when no one else was in the house, she caught hold of his garment; Joseph left the garment in her hand and ran outside. We'll compare this with Proverbs 6: can a man carry fire against his chest and his clothes not be burned? Today we're talking together about emotional affairs and crossing lines, and how to turn away early.
1. Read verses 1-6. What was Joseph's situation in Potiphar's house? What does the text say about how Yahweh and his master treated him?
Leader note: He was a slave who had been bought; Yahweh was with him and made everything he did prosper; his master made him overseer of his house and put everything he had into his hands.
2. Read verses 7-10. How did his master's wife try to seduce him? How did Joseph answer? What does verse 10 say he did after that?
Leader note: She set her eyes on him and said, "Lie with me." Joseph said that his master had entrusted everything to him and kept back only her: "How then can I do this great wickedness, and sin against God?" She spoke to him day by day; he would not listen, and would not even be with her.
3. Read verses 11-12, then Proverbs 6:27-29. What did Joseph do that last time? What pictures does Proverbs use?
Leader note: He left his garment in her hand and ran outside. Proverbs asks whether a man can scoop fire into his lap without his clothes being burned, or walk on hot coals without scorching his feet.
4. Joseph said, "How then can I do this great wickedness, and sin against God?" What two levels did he see? Why is crossing the line never just a matter between two people?
Leader note: This is the lesson's center question; leave plenty of time. One level was his master's trust; the other was God. Crossing the line wounds the spouse, children and family who trust us, and it is sin before God. "We haven't done anything" usually sees only two people, and misses both of these levels.
5. Joseph would not "be with her," and in the end ran, even leaving his garment behind. Faced with temptation, why do boundaries and running matter more than "I can handle it"? In today's online emotional affairs, what might "not being with her" look like?
Leader note: Boundaries have to be set before you get close to the fire: if you are actively taking part in contact with a romantic or sexual tone, that you deliberately hide, or that is gradually taking your spouse's place, stop and set boundaries—for instance, no late-night private chats, no secrets only two people know, and meeting in public places for work. If you are being harassed, pressured or controlled, keep the evidence and seek help safely. Running has a cost: Joseph lost his garment and was later falsely accused; but that cost is far smaller than the cost of crossing the line.
6. (Flexible question; discuss if time allows) If someone has already crossed the line, what does the gospel say to them? What do repentance, confession and bearing the consequences each look like?
Leader note: 1 John 1:9 says that if we confess our sins, God will forgive us. Repentance means confessing before God and ending the relationship; bearing the consequences means not blaming your spouse, and accepting that trust has to be rebuilt slowly. Whether and how to tell your spouse should first be talked over with a pastor or experienced counsellor, with care for the other person's pain and safety.
7. In everyday life, which small, unremarkable things most easily become the beginning of crossing the line? (Don't talk about specific people; if you'd rather not talk, you can just listen; first-time visitors can share too)
Leader note: Lead toward specifics: telling someone of the opposite sex about your spouse's faults, feeling "only they understand me," chats that start to carry a flirtatious tone or that you deliberately hide from your spouse, finding reasons to come home late. Just listen; don't probe.
8. This week, what boundary are you willing to set for your marriage? Or to which trustworthy person are you willing to be accountable?
Leader note: Lead toward specifics: stop a conversation that makes you uneasy, no more meeting alone, find a mature brother or sister of the same sex to remind each other. For those who have already crossed the line, arrange to talk with a pastor. Build your action list from this.
Ask one member to read Genesis 39:9-12 slowly, then 1 Corinthians 10:13, and everyone is silent for two minutes. In your heart, tell God about something you would rather no one saw; there's no need to say it aloud. Those willing can pray a sentence or two: asking God to guard their marriage, asking for courage to turn away early, or praying for those who have been hurt in their marriages. Those who don't want to speak can pray silently—that's prayer too; first-time visitors can listen quietly and don't need to pray or commit to anything. The leader then gathers up and prays for each person's home. Prayer requests stay within the group. Do not put sensitive matters in the app or share them in a group chat. For routine follow-up, first obtain the person’s consent, then privately note only the necessary sentence or two. If a child or someone unable to protect themselves is at risk, or there is immediate danger of self-harm or harm to others, do not wait for consent: contact local emergency services, police or appropriate protective services immediately.
You might begin this way (prayer direction):
Faithful God, you will not let us be tempted beyond what we can bear, and you will provide a way of escape. Guard our marriages, and help us to see whom crossing the line betrays and against whom it sins. Give us courage to turn away early: to end what must be ended, and to run when we must. For those of us who have already fallen, forgive us and cleanse us, and give us strength to bear the consequences and rebuild trust. Protect those who are being pursued and harmed at work or at home. In Jesus's name, amen.
After prayer, each person chooses one from below to do this week. Just one; if you can't decide right now, that's okay.
No need to record it or report it; you're welcome to share next time if you'd like. If you didn't manage something, bring the obstacle to prayer.
If you came as a couple, each think about these first at home, then tell each other. If you came alone, you can think only about question 1 and pray for your marriage. If you have already crossed the line, don't use this homework to make a sudden confession to your spouse; first talk with a pastor or counsellor as in the action list.
When you exchange answers, one speaks and the other only listens, without probing or checking up. Decide question 2 together, and once it's decided, write it on paper. If there is hitting or threatening at home, if money or identity documents are being controlled, if one of you is not allowed to see others, or if either of you fears retaliation for speaking, skip this homework, do not use it to arrange a negotiation or confrontation, and seek help on your own as in the action list.
You could choose “The Hiddenness of Sin” in the Exposing Sin, Confessing Sin, Putting Sin to Death series (2 Samuel 11; 2 Samuel 12:1–13), or “Honouring Each Other Physically and Emotionally” in the Singleness and Dating series (1 Corinthians 6:12–20).