'Altars' in the Bible

For the number of your gods is as the number of your towns, O Judah; and for every street in Jerusalem you have put up altars to the Baal for burning perfumes to the Baal.

The sin of Judah is recorded with a pen of iron, and with the sharp point of a jewel it is cut on their hearts of stone, and on the horns of their altars for a sign to them:

Their altars and their wood pillars under every branching tree, on the high hills and the mountains in the field.