'Husband's' in the Bible

Then Judah said to Onan, Go in to your brother's wife and do what it is right for a husband's brother to do; make her your wife and get offspring for your brother.

If the spirit of doubt comes into her husband's heart, and he has doubts of his wife, with good cause; or if he has doubts of her without cause:

If brothers are living together and one of them, at his death, has no son, the wife of the dead man is not to be married outside the family to another man: let her husband's brother go in to her and make her his wife, doing as it is right for a brother-in-law to do.

But if the man says he will not take his brother's wife, then let the wife go to the responsible men of the town, and say, My husband's brother will not keep his brother's name living in Israel; he will not do what it is right for a husband's brother to do.