Romans 14:5,6 - Joseph Benson’s Commentary on the Old and New Testaments

And with respect to days, one man esteemeth one day above another Thinks that the new moons and Jewish festivals are holier than other days, and ought still to be observed. Another esteemeth every day alike Holds that the difference of days appointed by Moses has now ceased. The Jewish holydays only being the subject of controversy, what the apostle hath here written concerning them cannot be extended to the sabbath, instituted at the creation, nor to the Christian sabbath, the Lord's day. Let every man be fully persuaded in his own mind That a thing is lawful before he does it, or well satisfied as to the grounds of his practice, that so he may not knowingly offend God. He that regardeth the day That observes these new moons and festivals; regardeth it unto the Lord That is, out of a principle of conscience toward God, and with a view to his glory. And he that regardeth not the day That does not make conscience of observing it; to the Lord he doth not regard it He also acts from a principle of conscience, and aims at God's glory. He that eateth Indifferently of all meats; eateth to the Lord Endeavours to glorify him, as it becomes a good Christian to do. For he giveth God thanks For the free use of the creatures, and for his Christian liberty respecting them. And he that eateth not The food which the law forbids; to the Lord Out of respect to God's commands, he eateth not, and giveth God thanks For his herbs, or that other food is provided, on which he may conveniently subsist, and that he is not forced to eat what he thinks unclean, out of absolute necessity.