The Apostle Paul
1 Corinthians 7:2ESV·traditional attribution

But because of the temptation to sexual immorality, each man should have his own wife and each woman her own husband.

John Calvin Reformed @genevareformer

2. But to avoid fornication He now commands, that those who are liable to the vice of incontinency should have recourse to the remedy. For though it may seem that the statement is universal, it ought, nevertheless, to be restricted to those who feel themselves urged by necessity. As to this, every one must judge for himself.

Matthew Henry Presbyterian @wholebiblehenry

The apostle comes now, as a faithful and skilful casuist, to answer some cases of conscience which the Corinthians had proposed to him. Those were things whereof they wrote to him, Co1 7:1. As the lips of ministers should keep knowledge, so the people should ask the law at their mouths. The apostle was as ready to resolve as they were to propose their doubts.

Commenting on 1 Corinthians 7:1-9

John Gill Reformed Baptist @doctorgill

Nevertheless, to avoid fornication,.... Or "fornications"; meaning either the frequent commission of that sin; or all sorts of uncleanness and pollution, which may be avoided by wedlock, and the proper use of the marriage bed, where the gift of continency is not bestowed: wherefore to prevent unlawful copulations, as of single persons with one another, or of a married person with a single one, the...