Romans 7:3
So then, she will be called an adulteress if she lives with another man while her husband is alive. But if her husband dies, she is free from that law, and though she marries another man, she is not an adulteress.
Matthew 5:32
But I say to you that every one who divorces his wife, except on the ground of unchastity, causes her to become an adulteress; and whoever marries a divorced woman commits adultery.
Mark 10:6-12
But from the beginning of creation God 'made them male and female.'
John 8:3-5
Then the scribes and the Pharisees brought to him a woman caught in adultery. And when they had set her in the midst,
1 Timothy 5:11-14
But refuse to put younger widows on the list, for when they feel sensual desires in disregard of Christ, they want to marry,