The Apostle Paul
Philippians 2:14BSB·traditional attribution

Do everything without complaining or arguing,

John Calvin Reformed @genevareformer

14 Without murmurings. These are fruits of that humility to which he had exhorted them. For every man that has learned carefully to submit himself to God, without claiming anything for himself, will also conduct himself agreeably among men. When every one makes it his care to please himself, two faults prevail: First, they calumniate one another; and secondly, they strive against one another in contentions.

Matthew Henry Presbyterian @wholebiblehenry

The apostle exhorts them in these verses to adorn their Christian profession by a suitable temper and behaviour, in several instances. 1. By a cheerful obedience to the commands of God (Phi 2:14): "Do all things, do your duty in every branch of it, without murmurings. Do it, and do not find fault with it.

Commenting on Philippians 2:14-18

John Gill Reformed Baptist @doctorgill

Do all things,.... Not evil things, these are to be abhorred, shunned, and avoided, even all appearance of them, they are not to be done, even the sake of good; nor all indifferent things at all times, and under all circumstances, when the peace and edification of others are in danger of being hurt by so doing; but all good things, all that are agreeable...