“Finally, brethren, whatever things are true, whatever things are noble, whatever things are just, whatever things are pure, whatever things are lovely, whatever things are of good report, if there is any virtue and if there is anything praiseworthy—meditate on these things”
(Philippians 4:8 NKJV)

think on these things

In the previous context, Paul encouraged the Philippians to stand firm in the Lord, to be united, to rejoice, to be moderate in all things, and to avoid anxiety (Philippians 1-7).

Now the readers must fasten these things in their minds by meditation. How may we remember our duties? We ponder them, dwell on them, put them into practice, keep them in our minds, as the man who delights in the law of the Lord, meditating on it day and night (see Psalm 1:2). The greatest battle of our day is the battle for the mind.

Think on things that are . . .

1. True: reminds us that (1) truth exists, John 17:17; (2) we can know truth (John 8:31-32); (3) our knowledge should influence our lives (1 Tim.3:15).
2. Noble: synonyms include honorable, worthy of respect, holy, above reproach. Christians are “different” from the world.
3. Just: embraces what is both lawful and right, Eph.4:24.
4. Pure: consider the adverb in Philippians 1:16 [in ASV and others, verse 17]: some proclaimed Christ “not sincerely.” Obviously the word includes motives, not mere actions.
5. Lovely: valuable, pleasing, attractive, beautiful. If the Christian is to adorn the doctrine of God (Titus 2:10), he must remember his manners.
6. Of good report: speaking well of (illustrated in 2:19-20).
7. Virtue: excellence in any sphere; merit. We are only as strong as our weakest moment.
8. Praiseworthy: virtue is the quality; praise is its due. Let our words, thoughts, and deeds glorify our Heavenly Father.

– Rick Duggin