John Calvin's Commentary on the Bible - 1 Corinthians 7:16
Verse 16 16.For what knowest thou, O woman? Those who are of opinion that this observation is a confirmation of the second department of his statement, expound it thus. “An uncertain hope ought not to detain thee,” etc. But, in my opinion, the exhortation is taken from the advantage to be derived; for it is a great and distinguished blessing if a wife gain (1 Corinthians 9:19) her husband. Now, unbelievers are not in so hopeless a condition but that they may be brought to believe. They are... read more
John Calvin's Commentary on the Bible - 1 Corinthians 7:15
Verse 15 15.But if an unbeliever depart. This is the second department of his statement, in which he sets at liberty a believing husband, who is prepared to dwell with an unbelieving wife, but is rejected by her, and in like manner a woman who is, without any fault on her part, repudiated by her husband; for in that case the unbelieving party makes a divorce with God rather than with his or her partner. There is, therefore, in this case a special reason, inasmuch as the first and chief bond is... read more