Genesis 24:14

And it shall be, the virgin to whomsoever I shall say, Incline thy water-pot, that I may drink, and she shall say, Drink thou, and I will give thy camels drink, until they shall have done drinking—even this one thou hast prepared for thy servant Isaac, and hereby shall I know that thou hast dealt mercifully with my master Abraam.

And let it come to pass, that the damsel to whom I shall say, Let down thy pitcher, I pray thee, that I may drink; and she shall say, Drink, and I will give thy camels drink also: let the same be she that thou hast appointed for thy servant Isaac; and thereby shall I know that thou hast shewed kindness unto my master.

Let it happen, that the young lady to whom I will say, ‘Please let down your pitcher, that I may drink,’ then she says, ‘Drink, and I will also give your camels a drink,’—let her be the one you have appointed for your servant Isaac. By this I will know that you have shown kindness to my master.”