Romans 14:6
6 The one who observes the day, observes it in honor of the Lord. The one who eats, eats in honor of the Lord, usince he gives thanks to God, while the one who abstains, abstains in honor of the Lord and gives thanks to God.
1 Timothy 4:3–5
3 who dforbid emarriage and frequire abstinence from foods gthat God created hto be received with thanksgiving by those who believe and know the truth. 4 For ieverything created by God is good, and nothing is to be rejected if it is received with thanksgiving, 5 for it is jmade holy by the word of God and prayer.