Here's a short excerpt about v8 from one of my commentaries. It makes a number of interesting points about v8 so I thought that I'd include it.
The word finally indicates that Paul has arrived at the climax of his teaching on spiritual stability. The principle that he is about to relate is both the summation of all the others and the key to implementing them. The phrase dwell on these things introduces an important truth: spiritual stability is a result of how a person thinks. The imperative form of logizomai (dwell on) makes it a command; proper thinking is not optional in the Christian life. Logizomai means more than just entertaining thoughts; it means “to evaluate,” “to consider,” or “to calculate.” Believers are to consider the qualities Paul lists in this verse and meditate on their implications. The verb form calls for habitual discipline of the mind to set all thoughts on these spiritual virtues.
The Bible leaves no doubt that people’s lives are the product of their thoughts. Proverbs 23:7 declares, “For as he thinks within himself, so he is.” The modern counterpart to that proverb is the computer acronym GIGO (Garbage In, Garbage Out). Just as a computer’s output is dependent on the information that is input, so people’s actions are the result of their thinking. Jesus expressed that truth in Mark 7:20–23:
“That which proceeds out of the man, that is what defiles the man. For from within, out of the heart of men, proceed the evil thoughts, fornications, thefts, murders, adulteries, deeds of coveting and wickedness, as well as deceit, sensuality, envy, slander, pride and foolishness. All these evil things proceed from within and defile the man.”
Paul’s call for biblical thinking is especially relevant in our culture. The focus today is on emotion and pragmatism, and the importance of serious thinking about biblical truth is downplayed. People no longer ask “Is it true?” but “Does it work?” and “How will it make me feel?” Those latter two questions serve as a working definition of truth in our society that rejects the concept of absolute divine truth. Truth is whatever works and produces positive emotions. Sadly, such pragmatism and emotionalism has crept even into theology. The church is often more concerned about whether something will be divisive or offensive than whether it is biblically true. ~MacArthur, J. F., Jr. (2001). Philippians (p. 285). Moody Press.
~Deuteronomy
p.s. - what the Apostle says in v9 is interesting too. Also, outside of God Himself and His word, is there anyone or anything else in this world that is characterized by all seven of these virtues (from v8) simultaneously?
Finally, I hope to be able to return tomorrow (Dv) to answer your OP question/request far more directly.
Philippians 4
8 Finally, brethren, whatever is true, whatever is honorable, whatever is right, whatever is pure, whatever is lovely, whatever is of good repute, if there is any excellence and if anything worthy of praise, dwell on these things.
9 The things you have learned and received and heard and seen in me, practice these things, and the God of peace will be with you.