SOURCE: D.A. Carson
(1) Always rejoice in the Lord (Phil. 4:4). This command is so important that Paul repeats it. Our responsibility to obey it is independent of circumstances, for regardless of how utterly miserable our situation is, the Christian always has the most profound reasons for rejoicing in Christ Jesus: sins forgiven and the prospect of resurrection life in the new heaven and the new earth—not to mention the consolation of the Spirit even now, and much more. Practically speaking, Paul well knows that the believer who is truly rejoicing in the Lord cannot possibly be a back-biter, a cheat, a whiner, a thief, or lazy, bitter, and filled with hate.
(2) Be known for gentleness (Phil. 4:5). That is almost a delicious oxymoron. So much in our culture wants us to be known for aggressiveness, or for some intrinsic strength or superiority. The gentle person does not usually think in terms of being known. But Paul wants us so to focus on gentleness that eventually we become known for gentleness. The ground Paul offers is that the Lord is “near.” In this context, probably Paul does not mean that the Lord’s coming is near, but that the Lord himself is never far from his people: he is near, and is watching us, as he watches over us, all the time. That becomes our motivation for acting as he wishes us to act.
(3) Stop worrying (Phil. 4:6–7). Paul is not advocating irresponsible escapism, still less a Pollyanna-like optimism. Moreover, strictly speaking he is not telling us to stop worrying and nothing more, but rather he tells us how to stop worrying—by replacing this constant fretting with something else: “in everything, by prayer and petition, with thanksgiving [there’s the praise theme again], present your requests to God” (Phil. 4:6). Paul does not deny the agony and sorrow of many human experiences. How could he? His letters show that he suffered his share of the worst. But he knows the solution. Either worrying drives out prayer, or prayer drives out worrying. Moreover, Paul insists, this disciplined, thankful, intercessory prayer brings with it “the peace of God, which transcends all understanding” (Phil. 4:7).
(4) Think holy thoughts (Phil. 4:8–9). Garbage in, garbage out. We are renewed by the transforming of our minds (Rom. 12:1–2). So watch what you feed your mind; watch what you think; determine to drive your mind into good and healthy channels, not those characterized by bitterness, resentments, lust, hate, or jealousy. Reflect on all the kinds of things Paul includes in his diverse list of verse 8. Moreover, here too Paul serves as an important example (Phil. 4:9): he is not telling us to do anything he does not practice himself.