Josiah was eight years old when he began to reign, and he reigned thirty-one years in Jerusalem.² And he did what was right in the eyes of the LORD, and walked in the ways of David his father; and he did not turn aside to the right hand or to the left.³ For in the eighth year of his reign, while he was yet a boy, he began to seek the God of David his father, and in the twelfth year he began to purge Judah and Jerusalem of the high places, the Asherim, and the carved and the metal images.
2 Chronicles 34:1-3
Depending on how we read this passage in the context of the whole book, Josiah sought the Lord very early for his age (16 years) or very late for a king (it took him 8 years to get, plus another 4 years before he did anything). The lesson for us is obvious: we are never too early or too late to live for the Lord, as long as we have breath. Let us seek the Lord whilst He may be found.