1 Corinthians 10:25 - Matthew Poole's English Annotations on the Holy Bible

It is possible that butchers, before they brought their meat into the market, might offer some part of it to the idol; or it is possible that the priests, who had a share in the beasts offered to idols, or the people that had offered such beasts, who, also had a share returned them, might out of covetousness come and bring it to be sold in the market. The apostle directeth the Corinthians in such cases to make no scruple, but eat of it, if it were commonly sold in the shambles; which argued, that the thing in itself, considered nakedly, was not sinful. But yet he would have them in that case ask no questions, whence it came? Or whether it had not been offered to an idol? For the sake of other men's consciences, lest some others standing by should take notice that they bought and ate such meat. Or their own consciences, lest, though the thing in itself, so separated from a sacred use, and returned to its common use, might be lawfully eaten, yet their consciences should afterwards reflect upon them for the doing of it.