Adam Clarke on 2 Kings 15:36

Now the rest of the acts of Jotham - These acts are distinctly stated in 2Chr 27:1-9. He built the high gate of the house of the Lord, and he built much on the wall of Ophel. He built cities in the mountains of Judah; and in the forests he built castles and towers. He overthrew the Ammonites; and obliged them to give him one hundred talents of silver, ten thousand measures of wheat, and ten thousand of barley, for three consecutive years. He was twenty-five years old when he began to reign, and he reigned sixteen years. These are the particulars which we learn from the place in Chronicles quoted above; few of which are mentioned in this place. As to the higher gate of the house of the Lord, commentators are not well agreed: some think it was a gate which he then made, and which did not exist before, and is the same that is called the new gate, Jer 26:10, which is very likely.