Musar su Proverbi 23:25

The second quality: The pious man gets more pleasure out of his love for his God than he would from all the pleasures of the world. For it is a well-known fact that a man has no greater joy than that derived from his children, as it is said (Proverbs 23:25), “Let thy father and thy mother be glad and let her that bore thee rejoice.” Now, our father, Abraham, peace be upon him, rejoiced greatly in this service of God, blessed be He. His pleasure in the service of God, blessed be He, was mightier than the love of his sons. He sent Ishmael, his son, far away from him because of his great love of God, blessed be He.