Romans 14:5-10

Some people consider some days more important than others, while others consider each day the same. Everyone should be completely convinced in their own minds. Those who respect a special day do so for the Lord; and those who eat without worrying do so for the Lord since they give thanks to God; while those who avoid eating certain things do so for the Lord, and they also give thanks to God. None of us live for ourselves, or die for ourselves. If we live, we live for the Lord, or if we die, we die for the Lord—so whether we live or die, we belong to the Lord. This was the reason Christ died and came back to life—so that he could be the Lord of both the dead and the living. So why do you criticize your fellow-believer? Why do you despise your fellow-believer? For all of us will stand before God's throne of judgment.