1 Corinthians 7:39 in the King James Version
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.
Context
38 So then both he who gives his own virgin in marriage does well, and he who doesn’t give her in marriage does better.
39 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.
40 But she is happier if she stays as she is, in my judgment, and I think that I also have God’s Spirit.