The Apostle Paul
Romans 14:17BSB·traditional attribution

For the kingdom of God is not a matter of eating and drinking, but of righteousness, peace, and joy in the Holy Spirit.

John Calvin Reformed @genevareformer

17. For the kingdom of God, etc. He now, on the other hand, teaches us, that we can without loss abstain from the use of our liberty, because the kingdom of God does not consist in such things. Those things indeed, which are necessary either to build up or preserve the kingdom of God, are by no means to be neglected, whatever offenses may hence...

Matthew Henry Presbyterian @wholebiblehenry

We have in this chapter, I. An account of the unhappy contention which had broken out in the Christian church. Our Master had foretold that offences would come; and, it seems, so they did, for want of that wisdom and love which would have prevented discord, and kept up union among them. 1.

Commenting on Romans 14:1-23

John Gill Reformed Baptist @doctorgill

For he that in these things serveth Christ,.... That is, in righteousness, peace, and joy in the Holy Ghost; he whose faith is an obedient one, and embraces these things, and from the heart obeys them; who seeks righteousness alone by Christ, and peace and pardon through his blood; who rejoices in Christ Jesus, and puts no trust in the flesh, in moral duties or...