Genesis 18:19

18:19 I have chosen him so that he may command his children and his household after him to keep the way of the Lord by doing what is right and just. Then the Lord will give to Abraham what he promised him.”

Genesis 24:14

24:14 I will say to a young woman, ‘Please lower your jar so I may drink.’ May the one you have chosen for your servant Isaac reply, ‘Drink, and I’ll give your camels water too.’ In this way I will know that you have been faithful to my master.”