1 Corinthians 14:20

Brothers, do not show yourselves children in understanding. In wickedness be infants, but in understanding show yourselves men.

Romans 16:19

Every one has heard of your ready obedience. It is true that I am very happy about you, but I want you to be well versed in all that is good, and innocent of all that is bad.

Matthew 18:3

"I tell you, unless you change and become like little children, you will not enter the Kingdom of Heaven at all.

Hebrews 5:12-13

For whereas, considering the time that has elapsed, you ought to be teaching others, you still need some one to teach you the very alphabet of the Divine Revelation, and need again to be fed with 'milk' instead of with 'solid food.'

1 Peter 2:2

like newly born infants, crave pure spiritual milk, so that you may be enabled by it to grow till you attain Salvation--

1 Corinthians 2:6

Yet there is a philosophy that we teach to those whose faith is matured, but it is not the philosophy of to-day, nor that of the leaders of to-day-men whose downfall is at hand.

Matthew 11:25

At that same time Jesus uttered the words: "I thank thee, Father, Lord of Heaven and earth, that, though thou has hidden these things from the wise and learned, thou hast revealed them to the child-like!

Matthew 19:4

"Have not you read," replied Jesus, "that at the beginning the Creator 'made them male and female,'

Mark 10:15

I tell you, unless a man receives the Kingdom of God like a child, he will not enter it at all."

1 Corinthians 3:1-2

But I, Brothers, could not speak to you as men with spiritual insight, but only as worldly-minded-mere infants in the Faith of Christ.

1 Corinthians 13:11

When I was a child, I talked as a child, I felt as a child, I reasoned as a child; now that I am a man, I have done with childish ways.

Ephesians 4:14-15

Then we shall no longer be like infants, tossed backward and forward, blown about by every breath of human teaching, through the trickery and the craftiness of men, towards the snares of error;

Philippians 1:9

And what I pray for is this--that your love may grow yet stronger and stronger, with increasing knowledge and all discernment,

Philippians 3:15

Let all of us, then, whose faith is mature, think thus. Then, if on any matter you think otherwise, God will make that also plain to you.

Hebrews 6:1-3

Therefore, let us leave behind the elementary teaching about the Christ and press on to perfection, not always laying over again a foundation of repentance for a lifeless formality, of faith in God--

2 Peter 3:18

and advance in the love and knowledge of our Lord and Savior, Jesus Christ. All glory be to him now and for ever.

Treasury of Scripture Knowledge

Summary

Brethren, be not children in understanding: howbeit in malice be ye children, but in understanding be men.

General references

Bible References

Not

1 Corinthians 3:1
But I, Brothers, could not speak to you as men with spiritual insight, but only as worldly-minded-mere infants in the Faith of Christ.
1 Corinthians 13:11
When I was a child, I talked as a child, I felt as a child, I reasoned as a child; now that I am a man, I have done with childish ways.
Romans 16:19
Every one has heard of your ready obedience. It is true that I am very happy about you, but I want you to be well versed in all that is good, and innocent of all that is bad.
Ephesians 4:14
Then we shall no longer be like infants, tossed backward and forward, blown about by every breath of human teaching, through the trickery and the craftiness of men, towards the snares of error;
Philippians 1:9
And what I pray for is this--that your love may grow yet stronger and stronger, with increasing knowledge and all discernment,
Hebrews 5:12
For whereas, considering the time that has elapsed, you ought to be teaching others, you still need some one to teach you the very alphabet of the Divine Revelation, and need again to be fed with 'milk' instead of with 'solid food.'
Hebrews 6:1
Therefore, let us leave behind the elementary teaching about the Christ and press on to perfection, not always laying over again a foundation of repentance for a lifeless formality, of faith in God--
2 Peter 3:18
and advance in the love and knowledge of our Lord and Savior, Jesus Christ. All glory be to him now and for ever.

Men

1 Corinthians 2:6
Yet there is a philosophy that we teach to those whose faith is matured, but it is not the philosophy of to-day, nor that of the leaders of to-day-men whose downfall is at hand.
Philippians 3:15
Let all of us, then, whose faith is mature, think thus. Then, if on any matter you think otherwise, God will make that also plain to you.

General references

1 Corinthians 10:15
I speak to you as man of discernment; form your own judgment about what I am saying.