2 Kings 16:13

And he burnt his burnt offering and his meat offering, and poured his drink offering, and sprinkled the blood of his peace offerings, upon the altar.

Cross-reference

2 Chronicles 28:23 Historical context

In 2 Chronicles 28:23, Ahaz sacrifices to Damascus's gods — the offerings in 2 Kings 16:13 are part of this same idolatrous worship.

In 2 Chronicles 26:16, Uzziah's pride leads him to burn incense illegitimately — Ahaz similarly acts as a priest by offering sacrifices.