A wife is bound as long as her husband lives. But if the husband dies, she is free to marry anyone she wishes, only in the Lord. But in my judgement she is more blessed if she remains as she is. And I think that I too have the Spirit of God. (1 Corinthians 7: 39-40)

Paul has been careful to specify that he is going beyond what Jesus taught. He has gone well beyond the usual understanding of Torah.

He is offering a judgment - gnome - that Paul believes is informed by the Spirit of God. In the case of marriage or re-marriage it is a very conditional judgment.

Which choice is made is of lesser importance than it being a free choice. If the free choice gives priority to one's relationship with God, Paul is confident it is good choice.

This strikes me as fundamentally coherent with the teachings of Jesus. Throughout his ministry Jesus chose to enter into loving relationships with a wide range of sinners.

Because the relationship of Jesus with God suffered no distractions, an abstract notion of sin was much less important than an urgent love for the specific sinner.