”In Greek, ”think about” means to consider, take account, weigh, meditate on a thing, with a view to obtaining it. We know that when we do that on all that is mentioned in the verse above, we can live joyful and fulfilled lives.
The original term for "think about such things" in Greek, is "logizesthe" (the root of the English terms "logic, logical") and means to consider, take account, weigh, meditate on: (Thayer's Greek Lexicon Strongs NT - 3049: λογίζομαι)
So, Paul, being led of the Holy Spirit, urges us to meditate and focus on all the good things; which enables us to not only live happy and fulfilled lives, but also to inherit eternal life.
Why would it help us to think only about what is true?
Jesus tells us that the devil is "a murderer from the beginning, and abode not in the truth, because there is no truth in him. When he speaks a lie, he speaks of his own: for he is a liar, and the father of it." (John 8:44)
Jesus is "the truth." His words on the pages of the Bible are all believable and powerful.
"Jesus said,"I am the way, the truth, and the life: no man comes unto the Father, but by me." (John 14: 6)
When we think or speak a lie, we agree with the devil and give him the right to hurt us. Every lie is followed by consequences. The truth, instead, even if it costs us in the short term, brings us long-term benefits and our Lord will help to solve the difficult situations we face.
As we live, focusing on truth, we change and grow in the Lord becoming more like Jesus. All that Paul listed in Philippians 4:8, shows that everything that is worthy to be honored, all that is pure and all that deserves to be loved and received are really intrinsic parts of the truth. We do ourselves a huge favor by concentrating on all these. The mind that is centered on truth, justice, purity, goodness, love, dedication, will produce pure thoughts, in obedience to God is a blessed place.
Believing and knowing the truth are essential aspects of the Christian life. How can we agree with what God's Word says if we don't know it? How can we make the right decisions if we don't know what is right? How do we distinguish between thoughts that are from our Lord, our carnal nature or from the devil, if we don't know what the Scripture says?
Truth leads us and reveals God to us. It opens our spiritual ears to hear what the Holy Spirit tells us. It guides us through the vast delusions and lies of this world. Knowing the truth, makes us truly free, because we no longer believe the devil's lies that would bind us and keep us bound.
Lord God, please give us more hunger for reading and studying Your Word, so we can become more like You and can accomplish all that You want us to do! Amen