'Boy' in the Bible

and worthless men, {sons of wickedness}, were gathered about him and became hostile against Rehoboam the son of Solomon, when Rehoboam was a boy and gentle of heart and was not strong enough [to stand] before them.

In the eighth year of his reign, while he [was] still a boy, he began to seek the God of David his ancestor. And in the twelfth year he began to cleanse Judah and Jerusalem of the high places, the Asherahs, the idols, and the images.