Hebrews 5:12

And this too, although you ought by this time to be teaching others, you are still needing some one to teach you the very rudiments of divine revelation. You need milk, not solid food.

Hebrews 6:1

So let us get beyond the teaching of the elementary doctrines of Christ, and let us be borne along toward what is mature. Let us not be continually laying again a foundation of repentance from dead works,

Acts 7:38

"This is the one who was in the congregation in the wilderness along with the angel who spoke to him in Mt. Sinai, and with our ancestors to whom he gave living words to hand down to us.

1 Peter 2:2

Like new-born babes long for the pure spiritual milk to make you grow up into salvation;

1 Corinthians 3:1-3

As for me, brothers, I could not talk to you as spiritual men, but as to creatures of flesh, mere babes in Christ.

Hebrews 5:13

For every one who feeds on milk is inexperienced in the word of righteousness. He is still an infant.

Colossians 3:16

Let the word of Christ have its home in you richly, in all wisdom. Teach and admonish one another in psalms and hymns and spiritual songs, ever singing with grace in your hearts unto God.

Titus 2:3-4

that older women likewise be reverent in demeanor, not slanderers or slaves to much wine, but teachers of what is right.

1 Peter 4:11

If any one preaches, let him always preach as one who utters God's truth; if any one serves another, let it be with the strength which God supplies; so that in every way God may be glorified through Jesus Christ, to whom be glory and dominion for ever and ever, Amen.

Matthew 17:17

In reply Jesus said: "O faithless and perverse generation, how long shall I be with you? How long shall I endure you? Bring him here to me!"

Mark 9:19

"O unbelieving generation!" replied Jesus; "how long must I be with you? How long must I be patient with you? Bring him to me."

1 Corinthians 14:19

but in the church I would rather speak five words with my understanding, so as to instruct others, than ten thousand in an unknown tongue.

Philippians 3:1

Finally, my brothers, continue to rejoice in the Lord. To write the same thing is not indeed wearisome to me, and it is safe for you.

Romans 3:2

Much in every way. First of all, because to them were entrusted the oracles of God.

Treasury of Scripture Knowledge

Summary

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.

The first

General references

Bible References

For the

Matthew 17:17
In reply Jesus said: "O faithless and perverse generation, how long shall I be with you? How long shall I endure you? Bring him here to me!"
Mark 9:19
"O unbelieving generation!" replied Jesus; "how long must I be with you? How long must I be patient with you? Bring him to me."

Teachers

1 Corinthians 14:19
but in the church I would rather speak five words with my understanding, so as to instruct others, than ten thousand in an unknown tongue.
Colossians 3:16
Let the word of Christ have its home in you richly, in all wisdom. Teach and admonish one another in psalms and hymns and spiritual songs, ever singing with grace in your hearts unto God.
Titus 2:3
that older women likewise be reverent in demeanor, not slanderers or slaves to much wine, but teachers of what is right.

The first

Hebrews 6:1
So let us get beyond the teaching of the elementary doctrines of Christ, and let us be borne along toward what is mature. Let us not be continually laying again a foundation of repentance from dead works,

The oracles

Acts 7:38
"This is the one who was in the congregation in the wilderness along with the angel who spoke to him in Mt. Sinai, and with our ancestors to whom he gave living words to hand down to us.
Romans 3:2
Much in every way. First of all, because to them were entrusted the oracles of God.
1 Peter 4:11
If any one preaches, let him always preach as one who utters God's truth; if any one serves another, let it be with the strength which God supplies; so that in every way God may be glorified through Jesus Christ, to whom be glory and dominion for ever and ever, Amen.

As have

Hebrews 5:13
For every one who feeds on milk is inexperienced in the word of righteousness. He is still an infant.
1 Corinthians 3:1
As for me, brothers, I could not talk to you as spiritual men, but as to creatures of flesh, mere babes in Christ.
1 Peter 2:2
Like new-born babes long for the pure spiritual milk to make you grow up into salvation;

General references

Matthew 15:16
He answered. "Are even you still without understanding?