2 Chronicles 4:1

4:1 He made a bronze altar, 30 feet long, 30 feet wide, and 15 feet high.

2 Chronicles 6:12

6:12 He stood before the altar of the Lord in front of the entire assembly of Israel and spread out his hands.

2 Chronicles 8:12

8:12 Then Solomon offered burnt sacrifices to the Lord on the altar of the Lord which he had built in front of the temple’s porch.