Philippians 2:14

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. Mind your work, and do not quarrel with it." God's commands were given to be obeyed, not to be disputed. This greatly adorns our profession, and shows we serve a good Master, whose service is freedom and whose work is its own reward. 2. By peaceableness and love one to another. "Do all things without disputing, wrangling, and debating one another; because the light of truth and the life of religion are often lost in the heats and mists of disputation." 3. By a blameless conversation towards all men (Phi 2:15): "That you may be blameless and harmless, the sons of God, without rebuke; that you be not injurious to any in word or deed, and give no just occasion of offence." We should endeavour not only to be harmless, but to be blameless; not only not to do hurt, but not to come under the just suspicion of it. Blameless and sincere; so some read it. Blameless before men, sincere towards God. The sons of God. It becomes those to be blameless and harmless who stand in such a relation, and are favoured with such a privilege.

— Matthew Henry's Concise Commentary (public domain)

murmurings--secret murmurings and complaints against your fellow men arising from selfishness: opposed to the example of Jesus just mentioned (compare the use of the word, Joh 7:12-13; Act 6:1; Pe1 4:9; Jde 1:16). disputings--The Greek is translated "doubting" in Ti1 2:8. But here referring to profitless "disputings" with our fellow men, in relation to whom we are called on to be "blameless and harmless" (Phi 2:15): so the Greek is translated, Mar 9:33-34. These disputings flow from "vain glory" reprobated (Phi 2:3); and abounded among the Aristotelian philosophers in Macedon, where Philippi was.

— Jamieson-Fausset-Brown Commentary (public domain)