מִפִּ֤י עֽוֹלְלִ֨ים ׀ וְֽיֹנְקִים֮ יִסַּ֪דְתָּ֫ עֹ֥ז לְמַ֥עַן צוֹרְרֶ֑יךָ לְהַשְׁבִּ֥ית א֝וֹיֵ֗ב וּמִתְנַקֵּֽם׃
Out of the mouth of babes and sucklings hast Thou founded strength, Because of Thine adversaries; That Thou mightest still the enemy and the avenger.
Read halakhic rulings (Jewish law) on Psalms 8:3: and classical halakhic sources.