Romans 14:2-6

2 Some people's faith allows them to eat anything, but the person who is weak in the faith eats only vegetables.
3 The person who will eat anything is not to despise the one who doesn't; while the one who eats only vegetables is not to pass judgment on the one who will eat anything; for God has accepted that person.
4 Who are you to judge the servants of someone else? It is their own Master who will decide whether they succeed or fail. And they will succeed, because the Lord is able to make them succeed.
5 Some people think that a certain day is more important than other days, while others think that all days are the same. We each should firmly make up our own minds.
6 Those who think highly of a certain day do so in honor of the Lord; those who will eat anything do so in honor of the Lord, because they give thanks to God for the food. Those who refuse to eat certain things do so in honor of the Lord, and they give thanks to God.
Scripture taken from the Good News Translation - Second Edition, Copyright 1992 by American Bible Society. Used by Permission.