In this verse you have a reason why Christians should not censure one another, upon an account of different opinions and practices, because they have all the same end and scope, which is the pleasing and glorifying of God. It is with regard to him that they eat, or eat not; that they observe those festival days, or observe them not; and so far they are on both sides to be commended; for that indeed should be our end, in all our actions, to glorify and please the Lord: see 1 Corinthians 10:31 Colossians 3:17. He giveth God thanks; i.e. he is thankful unto God for the bountiful and free use of his creatures. Some would ground that laudable practice of giving thanks at meals upon this text, but it hath a clearer warrant from Matthew 2:19; Matthew 14:36 26:26 Acts 27:35. He eateth not, and giveth God thanks; because he hath meat enough besides, which he is not forbidden, 1 Corinthians 10:28.
Related Commentaries of Romans 14:6
Romans 14:6
6 He that regardethc the day, regardeth it unto the Lord; and he that regardeth not the day, to the Lord he doth not regard it. He that eateth, eateth to the Lord, for he giveth God thanks; and he that eateth not, to the Lord he eateth not, and giveth God thanks.