'Unites' in the Bible
That is why a man leaves his father and mother and unites with his wife, and they become a new family.
Accordingly, she will be held an adulteress if she unites herself to another man while her husband lives. But if her husband dies, the marriage law no longer is binding on her [she is free from that law]; and if she unites herself to another man, she is not an adulteress.
You know that the person who unites himself with a prostitute becomes one body with her, don't you? For it is said, "The two will become one flesh."