'Father in law' in the Bible

The descendants of Hobab [the] Kenite, Moses' father-in-law, went up with the descendants of Judah from the city of palms [into] the wilderness of Judah, which [is] in [the] Negev [near] Arad. And they went and settled with the people.

And Heber the Kenite [was] separated from [the other] Kenites, [that is], from the descendants of Hobab the father-in-law of Moses. And {he was encamped} at Elon-bezaanannim, which [is] near Kedesh.

His father-in-law, the young woman's father, urged him to stay with him three days; and they ate and drank, and they spent the night there.

The man got up to go, but his father-in-law urged him, and he returned and spent the night there.

And the man got up to go--he, his concubine, and his servant--but his father-in-law, the father of the young woman, said to him, "Please, the day has worn on to evening; please, spend the night, the day has drawn to a close. Spend the night here and {enjoy yourself}. You can rise early tomorrow for your journey and {go to your home}."