"Ahaz went to Damascus to meet Tiglath-Pileser king of Assyria. He saw an altar in Damascus and sent to Uriah the priest a sketch of the altar, with detailed plans for its construction." (2 Kings 16:10)
Ahaz of Judah does not do right in the eyes of the LORD but walks in the ways of the kings of Israel. He even sacrifices his son in the fire. Israel and Aram attack Jerusalem; Ahaz appeals to Tiglath-Pileser of Assyria for help, sending silver and gold from the Temple as tribute. Assyria attacks Damascus and deports its people. Ahaz went to Damascus to meet Tiglath-Pileser king of Assyria. He saw an altar in Damascus and sent to Uriah the priest a sketch of the altar, with detailed plans for its construction. The priest builds it before Ahaz returns. Ahaz commands all offerings to be made on the new altar; the bronze altar of Solomon is moved aside. He dismantles various Temple furnishings to pay tribute to Assyria.
The importing of a pagan altar into the Temple is the outward sign of the internal collapse: Ahaz has imported the religion of his political patron. The Catechism identifies the corruption of worship as always following the corruption of political allegiance: the gods we serve in our alliances eventually take up residence in our sanctuaries (CCC 2113).
Brothers and sisters, Ahaz saw an altar and had it replicated in Jerusalem. The things we admire in cultures hostile to our covenant eventually find their way into our worship. Pay attention to what you are bringing home from Damascus. Sketching it is the first step to building it.
Lord God, keep us from importing the altars of Damascus into your Temple. Give us the discernment to see what admiration of the world's worship is doing to our own. Through Christ our Lord. Amen.