High places: That is, altars where they worshipped the Lord, but not according to the ordinance of the law; which allowed of no other places for sacrifice but the temple of God. Among these high places that of Gabaon was the chiefest, because there was the tabernacle of the testimony, which had been removed from Silo to Nobe and from Nobe to Gabaon.
[AD 1781] Richard Challoner on 1 Kings 3:2