Romans 14:5
One person prefers [one] day over [another] day, and another person regards every day [alike]. Each one must be fully convinced in his own mind.
Romans 14:23
But the one who doubts is condemned if he eats, because he does not [do so] from faith, and everything that [is] not from faith is sin.
Romans 14:14
I know and am convinced in the Lord Jesus that nothing [is] unclean of itself, except to the one who considers something to be unclean; to that person [it is] unclean.
1 Corinthians 8:7
But this knowledge [is] not in everyone. But some, being accustomed until now to the idol, eat [this food] as food sacrificed to idols, and their conscience, [because it] is weak, is defiled.
1 Corinthians 8:11
For the one who is weak--the brother for whom Christ died--is destroyed by your knowledge.
Galatians 4:9-10
But now, [because you] have come to know God, or rather have come to be known by God, how can you turn back again to the weak and miserable elemental spirits? Do you want to be enslaved to them all over again?
Colossians 2:16-17
Therefore do not let anyone judge you with reference to eating or drinking or participation in a feast or a new moon or a Sabbath,
1 John 3:19-21
By this we know that we are of the truth and will convince our heart before him,