1 Corinthians 8:6-7

Common(i) 6 yet for us there is but one God, the Father, from whom are all things and for whom we exist; and one Lord, Jesus Christ, through whom are all things, and through whom we exist. 7 However, not all possess this knowledge. But some, being accustomed to idols, eat food as really sacrificed to an idol; and their conscience, being weak, is defiled.