What does Genesis 24:17 mean?

Abraham's servant, resting by the well outside the city of Nahor, watches Rebekah fill her water jar and begin to return to the city. He has been sent to find a wife for Abraham's son, Isaac, and recently began praying for God to send the right woman to the well (Genesis 24:3–4; 12–14). Before he has even finished this prayer—asking God to show him a woman who is kind and generous—Rebekah appears. Now he approaches her, seeking to put into effect his plan to find the girl God has appointed for Isaac.

In the previous verses, the servant's prayer was that the appointed woman would respond to his request for water by offering to water his ten camels, as well. So the servant asks for a drink, and Rebekah's response is found in the following verses. As it turns out, this woman is not only beautiful (Genesis 24:16), she is also hospitable (Genesis 24:18). This is the very one God has intended for Isaac.