As concerning therefore the eating of those things that are offered in sacrifice unto idols, we know that an idol is nothing in the world, and that there is no other God but one.
All Commentaries on 1 Corinthians 8:4 Go To 1 Corinthians 8
Irenaeus of Lyons
AD 202
For though there be that are called gods, whether in heaven or in earth; yet to us there is but one God, the Father, of whom are all things, and we through Him; and one Lord Jesus Christ, by whom are all things, and we by Him."