בראשית פרק יח פסוק יט

כִּי יְדַעְתִּיו לְמַעַן אֲשֶׁר יְצַוֶּה אֶת־בָּנָיו וְאֶת־בֵּיתוֹ אַחֲרָיו וְשָׁמְרוּ דֶּרֶךְ יְהֹוָה לַעֲשׂוֹת צְדָקָה וּמִשְׁפָּט לְמַעַן הָבִיא יְהֹוָה עַל־אַבְרָהָם אֵת אֲשֶׁר־דִּבֶּר עָלָיו׃

 

Bereishit Chapter 18 Verse 19

For I have singled him out, that he may instruct his children and his posterity to keep the way of יהוה by doing what is just and right, in order that Hashem may bring about for Abraham what has been promised