1 Corinthians 3:2
I have fed you with milk, and not with meat: for till now you were not able to bear it, neither yet now are you able.
Torrey's Topical Textbook—AKJV

Hebrews 5:12
For when for the time you ought to be teachers, you 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.
Torrey's Topical Textbook—AKJV

1 Peter 2:2
As newborn babes, desire the sincere milk of the word, that you may grow thereby:
Torrey's Topical Textbook—AKJV