Romans 14:5
One man esteemeth one day above another: another esteemeth every day alike . Let each man be fully assured in his own mind.
Romans 14:23
But he that doubteth is condemned if he eat, because he eateth not of faith; and whatsoever is not of faith is sin.
Romans 14:14
I know, and am persuaded in the Lord Jesus, that nothing is unclean of itself: save that to him who accounteth anything to be unclean, to him it is unclean.
1 Corinthians 8:7
Howbeit there is not in all men that knowledge: but some, being used until now to the idol, eat as of a thing sacrificed to an idol; and their conscience being weak is defiled.
1 Corinthians 8:11
For through thy knowledge he that is weak perisheth, the brother for whose sake Christ died.
Galatians 4:9-10
but now that ye have come to know God, or rather to be known by God, how turn ye back again to the weak and beggarly rudiments, whereunto ye desire to be in bondage over again?
Colossians 2:16-17
Let no man therefore judge you in meat, or in drink, or in respect of a feast day or a new moon or a sabbath day:
1 John 3:19-21
Hereby shall we know that we are of the truth, and shall assure our heart before him: