Romans 14:1, 4, 12, 22

As for the one who is weak in faith, welcome him, but not to quarrel over opinions.

Who are you to pass judgment on the servant of another? It is before his own master that he stands or falls. And he will be upheld, for the Lord is able to make him stand.

So then each of us will give an account of himself to God.

The faith that you have, keep between yourself and God. Blessed is the one who has no reason to pass judgment on himself for what he approves.