Romans 14:4-6

Who do you think you are to sit in judgment of someone else’s household servant? His own master is the one to evaluate whether he succeeds or fails. And God’s servants will succeed, for God’s power supports them and enables them to stand. In the same way, one person regards a certain day as more sacred than another, and another person regards them all alike. There is nothing wrong with having different personal convictions about such matters. For the person who observes one day as especially sacred does it to honor the Lord. And the same is true regarding what a person eats. The one who eats everything eats to honor the Lord, because he gives thanks to God, and the one who has a special diet does it to honor the Lord, and he also gives thanks to God.