Here are 13 Bible verses about immaturity from the Old and New Testaments of the Holy Bible (King James Version), sorted from most to least relevant.
Jonah 4:11 KJV
And should not I spare Nineveh, that great city, wherein are more than sixscore thousand persons that cannot discern between their right hand and their left hand; and also much cattle?
Proverbs 22:15 KJV
Foolishness is bound in the heart of a child; but the rod of correction shall drive it far from him.
Deuteronomy 1:39 KJV
Moreover your little ones, which ye said should be a prey, and your children, which in that day had no knowledge between good and evil, they shall go in thither, and unto them will I give it, and they shall possess it.
2 Samuel 15:1-4 KJV
And it came to pass after this, that Absalom prepared him chariots and horses, and fifty men to run before him. And Absalom rose up early, and stood beside the way of the gate: and it was so, that when any man that had a controversy came to the king for judgment, then Absalom called unto him, and said, Of what city art thou? And he said, Thy servant is of one of the tribes of Israel. And Absalom said unto him, See, thy matters are good and right; but there is no man deputed of the king to hear thee. Absalom said moreover, Oh that I were made judge in the land, that every man which hath any suit or cause might come unto me, and I would do him justice!
1 Kings 12:13-14 KJV
And the king answered the people roughly, and forsook the old men’s counsel that they gave him; And spake to them after the counsel of the young men, saying, My father made your yoke heavy, and I will add to your yoke: my father also chastised you with whips, but I will chastise you with scorpions.
1 Kings 12:8 KJV
But he forsook the counsel of the old men, which they had given him, and consulted with the young men that were grown up with him, and which stood before him:
Deuteronomy 21:18 KJV
If a man have a stubborn and rebellious son, which will not obey the voice of his father, or the voice of his mother, and that, when they have chastened him, will not hearken unto them:
Proverbs 1:4 KJV
To give subtilty to the simple, to the young man knowledge and discretion.
Titus 2:6 KJV
Young men likewise exhort to be sober minded.
1 Corinthians 13:11 KJV
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.
2 Kings 2:23 KJV
And he went up from thence unto Bethel: and as he was going up by the way, there came forth little children out of the city, and mocked him, and said unto him, Go up, thou bald head; go up, thou bald head.
2 Chronicles 13:7 KJV
And there are gathered unto him vain men, the children of Belial, and have strengthened themselves against Rehoboam the son of Solomon, when Rehoboam was young and tenderhearted, and could not withstand them.
Job 19:18 KJV
Yea, young children despised me; I arose, and they spake against me.