1 Corinthians 8:7

but not in all men is the knowledge, and certain with conscience of the idol, till now, as a thing sacrificed to an idol do eat it, and their conscience, being weak, is defiled.

Romans 14:14

I have known, and am persuaded, in the Lord Jesus, that nothing is unclean of itself, except to him who is reckoning anything to be unclean -- to that one it is unclean;

1 Corinthians 8:9-10

but see, lest this privilege of yours may become a stumbling-block to the infirm,

1 Corinthians 10:28-29

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:

Romans 14:22-23

Thou hast faith! to thyself have it before God; happy is he who is not judging himself in what he doth approve,

1 Corinthians 1:10-11

And I call upon you, brethren, through the name of our Lord Jesus Christ, that the same thing ye may all say, and there may not be divisions among you, and ye may be perfected in the same mind, and in the same judgment,

Treasury of Scripture Knowledge

Summary

Howbeit there is not in every man that knowledge: for some with conscience of the idol unto this hour eat it as a thing offered unto an idol; and their conscience being weak is defiled.

Bible References

There

1 Corinthians 1:10
And I call upon you, brethren, through the name of our Lord Jesus Christ, that the same thing ye may all say, and there may not be divisions among you, and ye may be perfected in the same mind, and in the same judgment,

With

1 Corinthians 8:9
but see, lest this privilege of yours may become a stumbling-block to the infirm,
1 Corinthians 10:28
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:
Romans 14:14
I have known, and am persuaded, in the Lord Jesus, that nothing is unclean of itself, except to him who is reckoning anything to be unclean -- to that one it is unclean;