1 Corinthians 10:27-29

Young's Literal Translation

²⁷ and if any one of the unbelieving do call you, and ye wish to go, all that is set before you eat, nothing inquiring, because of the conscience;

²⁸ and if any one may say to you, `This is a thing sacrificed to an idol,' -- do not eat, because of that one who shewed [it], and of the conscience, for the Lord's [is] the earth and its fulness:

²⁹ and conscience, I say, not of thyself, but of the other, for why [is it] that my liberty is judged by another's conscience?