"Out of the mouths of babes."

Psalms 8.2, in a rebuttal to cynical unbelievers, asserts that the glory of God can be felt from infancy: “Out of the mouth of babes and sucklings hast thou ordained strength because of thine enemies, that thou mightest still the enemy and the avenger.” In proverbial use, the phrase has come to mean that infants may sometimes achieve an astute understanding that eludes their elders.