Mark 7:18 And he saith unto them, Are ye so without understanding also? Do ye not perceive, that whatsoever thing from without entereth into the man, it cannot defile him;

Matthew 16:9 Do ye not yet understand, neither remember the five loaves of the five thousand, and how many baskets ye took up?

Hebrews 5:12 For when for the time ye ought to be teachers, ye have need that one teach you again which be the first principles of the oracles of God; and are become such as have need of milk, and not of strong meat.

Deuteronomy 29:29 The secret things belong unto the LORD our God: but those things which are revealed belong unto us and to our children for ever, that we may do all the words of this law.

Isaiah 28:9 ¶Whom shall he teach knowledge? and whom shall he make to understand doctrine? them that are weaned from the milk, and drawn from the breasts.

Isaiah 28:10 For precept must be upon precept, precept upon precept; line upon line, line upon line; here a little, and there a little: