Numbers 10:29-30

Then Moses said to Hobab the son of Reuel the Midianite, Moses’ father-in-law, “We are going to the place of which the LORD said, ‘I will give it to you.’ Come with us, and we will be good to you, for the LORD has promised good [things] concerning Israel.” But Hobab [Moses’ brother-in-law] said to him, “I will not go; I will return to my own land and to my family.”