'Father in law' in the Bible

And the descendants of the Ken'ite, Moses' father-in-law, went up with the people of Judah from the city of palms into the wilderness of Judah, which lies in the Negeb near Arad; and they went and settled with the people.

Now Heber the Ken'ite had separated from the Ken'ites, the descendants of Hobab the father-in-law of Moses, and had pitched his tent as far away as the oak in Za-anan'nim, which is near Kedesh.

And his father-in-law, the girl's father, made him stay, and he remained with him three days; so they ate and drank, and lodged there.

And when the man rose up to go, his father-in-law urged him, till he lodged there again.

And when the man and his concubine and his servant rose up to depart, his father-in-law, the girl's father, said to him, "Behold, now the day has waned toward evening; pray tarry all night. Behold, the day draws to its close; lodge here and let your heart be merry; and tomorrow you shall arise early in the morning for your journey, and go home."