Romanos 14

5 One person judges one day to be more important than another; another person judges every day to be alike. Let each be fully convinced in his own mind. 6 The one who holds an opinion on the day does so to Hashem. And the one who eats does so to Hashem, for he does the bentshen (custom of saying grace after meals) of the Birkat Hamazon to Hashem. And the one who does not eat does so to Hashem and gives the hodayah (thanksgiving) to Hashem.