Charles Ellicott Commentary 2 Kings 15:6

"Now the rest of the acts of Azariah, and all that he did, are they not written in the book of the chronicles of the kings of Judah?" — 2 Kings 15:6 (ASV)

The rest of the acts of Azariah. — Such as his wars with the Philistines and Arabs, his improvements in the organisation of the army and the defences of the capital, his fondness for husbandry and cattle-breeding, and his success in all these directions, as well as his intrusion into the Sanctuary to offer incense at the golden altar. (See 2 Chronicles 25:0 and the Notes there.)