וַיֹּ֗אמֶר לְֽהַשְׁמִ֫ידָ֥ם לוּלֵ֡י מֹ֘שֶׁ֤ה בְחִיר֗וֹ עָמַ֣ד בַּפֶּ֣רֶץ לְפָנָ֑יו לְהָשִׁ֥יב חֲ֝מָת֗וֹ מֵֽהַשְׁחִֽית׃
Therefore He said that He would destroy them, Had not Moses His chosen stood before Him in the breach, To turn back His wrath, lest He should destroy them.
Read halakhic rulings (Jewish law) on Psalms 106:23: and classical halakhic sources.