1 Corinthians 7:39 in the World English Bible
A wife is bound by law for as long as her husband lives; but if the husband is dead, she is free to be married to whomever she desires, only in the Lord.
Context
38 So then he that giveth her in marriage doeth well; but he that giveth her not in marriage doeth better.
39 The wife is bound by the law as long as her husband liveth; but if her husband be dead, she is at liberty to be married to whom she will; only in the Lord.
40 But she is happier if she so abide, after my judgment: and I think also that I have the Spirit of God.