1 Kings 18:30

He repaired the altar of the Lord that was broken down— The altar, which the sacred author here calls the altar of the LORD, was certainly one of those which were built in the time of the judges and first kings of Israel, when, for want of a fixed place of worship, such structures were permitted. Both Tacitus and Suetonius speak of the God of Carmel, whom Vespasian went to consult when he was in Judea; but they tell us, that there was neither temple nor statue upon the mountain, except one single altar, plain, but venerable for its antiquity. The altar of Carmel seems to have had its original from the altar of the true God, which the ancient Hebrews first erected, and Elijah afterwards repaired; and which even the heathens held in such veneration, that when they came to be masters of the country, they would not so much as place an image by it.