'Husband's' in the Bible

However, if she vowed in her husband’s house or bound herself by a pledge with an oath,

“If brothers are living together and one of them dies without a son, the widow of the deceased shall not be married outside the family to a stranger. Her husband’s brother shall be intimate with her after taking her as his wife and perform the duty of a husband’s brother to her.

But if the man does not want to marry his brother’s [widowed] wife, then she shall go up to the gate [of the city, where court is held] to the elders, and say, ‘My brother-in-law refuses to continue his brother’s name in Israel; he is not willing to perform the duty of a husband’s brother.’

Now Naomi had a relative of her husband, a man of great wealth and influence, from the family of Elimelech, whose name was Boaz.

And I [the Lord God] will judge you like women who commit adultery or shed blood are judged; and I will bring on you the blood of wrath and jealousy.