Romans 14:3-4, 10-16

The one who eats [everything] is not to look down on the one who does not eat, and the one who does not eat must not criticize or pass judgment on the one who eats [everything], for God has accepted him. Who are you to judge the servant of another? Before his own master he stands [approved] or falls [out of favor]. And he [who serves the Master—the Lord] will stand, for the Lord is able to make him stand.

But you, why do you criticize your brother? Or you again, why do you look down on your [believing] brother or regard him with contempt? For we will all stand before the judgment seat of God [who alone is judge]. For it is written [in Scripture], “AS I LIVE, SAYS THE LORD, EVERY KNEE SHALL BOW TO ME, AND EVERY TONGUE SHALL GIVE PRAISE TO GOD.” [Is 45:23] So then, each of us will give an account of himself to God. Then let us not criticize one another anymore, but rather determine this—not to put an obstacle or a stumbling block or a source of temptation in another believer’s way. I know and am convinced [as one] in the Lord Jesus that nothing is unclean [ritually defiled, and unholy] in itself; but [nonetheless] it is unclean to anyone who thinks it is unclean. If your brother is being hurt or offended because of food [that you insist on eating], you are no longer walking in love [toward him]. Do not let what you eat destroy and spiritually harm one for whom Christ died. Therefore do not let what is a good thing for you [because of your freedom to choose] be spoken of as evil [by someone else]