1 Corinthians 7:38-40 New Revised Standard Version (NRSV)
38 So then, he who marries his fiancée[a] does well; and he who refrains from marriage will do better.
39 A wife is bound as long as her husband lives. But if the husband dies,[b] she is free to marry anyone she wishes, only in the Lord. 40 But in my judgment she is more blessed if she remains as she is. And I think that I too have the Spirit of God.