2 Kings 16:12
And when the king was come from Damascus, the king saw the altar: and the king approached to the altar, and offered thereon.
Cross-reference
Numbers 18:4–7
Contrast
In Numbers 18:4-7, only priests may serve at the altar — Ahaz, as a non-priest king, violates this by offering sacrifices himself.
2 Chronicles 26:16–19
Contrast
In 2 Chronicles 26:16-19, Uzziah is struck with leprosy for illegitimate incense offering — Ahaz faces no such punishment, contrasting their outcomes.
2 Chronicles 28:23
Historical context
In 2 Chronicles 28:23, Ahaz sacrifices to Damascus's gods hoping for help — this explains his motive for building the Damascus-style altar.
2 Chronicles 28:25
Historical context
In 2 Chronicles 28:25, Ahaz sets up high places across Judah — the new altar here is part of his widespread idolatry.
1 Kings 13:1
Parallel
In 1 Kings 13:1, Jeroboam stands at an illegitimate altar — Ahaz repeats this pattern by offering on a new, unauthorized altar.