1 Corinthians 3:2

I have given you milk to drink, and not food; for ye were not able, but neither now are ye yet able.

John 16:12

I have yet many things to say to you, but ye cannot bear them now.

1 Peter 2:2

As new born babes, long for the sincere milk pertaining to the word, that ye might be nourished with it:

Hebrews 5:11-14

Of whom great is the word to us, and difficult of interpretation to speak, since ye have been sluggish in the hearing.

Treasury of Scripture Knowledge

Summary

I have fed you with milk, and not with meat: for hitherto ye were not able to bear it, neither yet now are ye able.

General references

Bible References

Fed

Hebrews 5:12
For also ye ought to be teachers for the time, again ye have need for some one to teach you the elements of the beginning of the sayings of God; and have become those having need of milk, and not of firm food.
1 Peter 2:2
As new born babes, long for the sincere milk pertaining to the word, that ye might be nourished with it:

General references

Mark 7:18
And he says, So are ye also without understanding? Do ye not perceive, that anything from without entering into a man, cannot pollute him