14:6 Regardeth it to the Lord - That is, out of a principle of conscience toward God. To the Lord he doth not regard it - He also acts from a principle of conscience. He that eateth not - Flesh. Giveth God thanks - For his herbs.

Romans 14:6 Parallel Commentaries

Thus Much Will Suffice to have Treated on Behalf of True Continence against The...
26. Thus much will suffice to have treated on behalf of true Continence against the Manichees deceitfully continent, lest the fruitful and glorious labor of Continence, when it restrains and curbs the lowest part of us, that is, the body, from immoderate and unlawful pleasures, be believed not healthfully to chasten, but hostilely to persecute. Forsooth the body is indeed different from the nature of the soul, yet is it not alien from the nature of man: for the soul is not made up of body, but yet …
St. Augustine—On Continence

Letter xxxi (A. D. 1132) to the Abbot of a Certain Monastery at York, from which the Prior had Departed, Taking Several Religious with Him.
To the Abbot of a Certain Monastery at York, from Which the Prior Had Departed, Taking Several Religious with Him. [50] 1. You write to me from beyond the sea to ask of me advice which I should have preferred that you had sought from some other. I am held between two difficulties, for if I do not reply to you, you may take my silence for a sign of contempt; but if I do reply I cannot avoid danger, since whatever I reply I must of necessity either give scandal to some one or give to some other a security …
Saint Bernard of Clairvaux—Some Letters of Saint Bernard, Abbot of Clairvaux

September 29. "Call not Thou Common" (Acts x. 15).
"Call not thou common" (Acts x. 15). "There is nothing common of itself" (Rom. xiv. 14). We can bring Christ into common things as fully as into what we call religious services. Indeed, it is the highest and hardest application of Divine grace, to bring it down to the ordinary matters of life, and therefore God is far more honored in this than even in things that are more specially sacred. Therefore, in the twelfth chapter of Romans, which is the manual of practical consecration, just after the passage …
Rev. A. B. Simpson—Days of Heaven Upon Earth