Shared ground
Genesis 39:7–10 presents a straightforward moral conflict inside a trusted household role. The text is explicit that Potiphar’s wife initiates the proposal (“Lie with me”), and that Joseph refuses (Stage A textual claims). Joseph’s refusal is not impulsive; he explains it in terms of entrusted authority in the house and a clear boundary: “nothing… except you, because you are his wife.”
Joseph also names the act as both a serious wrong (“great wickedness”) and a sin “against God.” The passage therefore ties sexual wrongdoing to two levels of accountability at once: betrayal of human trust and offense against God.
Finally, the pressure is repeated (“day by day”), and Joseph’s resistance includes both not consenting and limiting proximity (“not… be with her”), indicating sustained, deliberate avoidance.
Where interpretation differs
Some readers think Joseph’s “sin against God” line is mainly rhetorical—an argument aimed at persuading her to stop. Others think it primarily reveals Joseph’s inner moral framework: he sees God as the highest audience for his conduct regardless of what humans see.
There is also debate over the nuance of “my master doesn’t know what is with me in the house.” Some take it as “he doesn’t supervise the details because he trusts me.” Others hear it as “he is so trusting that he is unaware of what I manage,” stressing the vulnerability of that trust.
Why the disagreement exists
The narrative reports Joseph’s speech without explaining his motives beyond the words themselves. Phrases like “doesn’t know what is with me” can describe either ordinary delegation or an exceptional level of unguarded trust. Likewise, “sin against God” can function both as moral reasoning and as persuasive speech, and the text does not force a single emphasis.
What this passage clearly contributes
Explicitly, the passage portrays sexual wrongdoing as more than private desire: it violates entrusted responsibility, disrespects marriage (“because you are his wife”), and is accountable to God. It also portrays temptation as persistent (“day by day”) and Joseph’s refusal as persistent, including practical distance (“not… be with her”) alongside verbal refusal. Inference (not directly stated but consistent with the scene): integrity here is linked to how Joseph understands authority, boundaries, and God’s oversight within ordinary work and household life.