1 Corinthians 13:11

When I was a child, I used to speak like a child, think like a child, reason like a child; when I became a man, I did away with childish things.

1 Corinthians 3:1-2

And I, brethren, could not speak to you as to spiritual men, but as to men of flesh, as to infants in Christ.

1 Corinthians 14:20

Brethren, do not be children in your thinking; yet in evil be infants, but in your thinking be mature.

Ecclesiastes 11:10

So, remove grief and anger from your heart and put away pain from your body, because childhood and the prime of life are fleeting.

Galatians 4:1

Now I say, as long as the heir is a child, he does not differ at all from a slave although he is owner of everything,

Treasury of Scripture Knowledge

Summary

When I was a child, I spake as a child, I understood as a child, I thought as a child: but when I became a man, I put away childish things.

Bible References

I spake

1 Corinthians 3:1
And I, brethren, could not speak to you as to spiritual men, but as to men of flesh, as to infants in Christ.
1 Corinthians 14:20
Brethren, do not be children in your thinking; yet in evil be infants, but in your thinking be mature.
Ecclesiastes 11:10
So, remove grief and anger from your heart and put away pain from your body, because childhood and the prime of life are fleeting.
Galatians 4:1
Now I say, as long as the heir is a child, he does not differ at all from a slave although he is owner of everything,