
Philippians 4:1:
4:1So-that, my loved1 and earnestly-longed-for brothers, my joy and crown, thus you must stand-firm in (the) Lord, loved-people1.
Here, Paul addresses the Philippian holy-people (sanctified-people, saints, Christians, children of God) as his loved1 and earnestly-longed-for brothers, thereby letting them know that, not only were they his brothers in the spirit category because they all had received the same gift of holy spirit and were therefore all children of God, but also that he loved them with God's love and was manifesting it towards them as he was writing this letter, and that he was having a real longing or desire for them.
The word "love1" or the verb "to love1" comes from the Greek word agape which is God's kind of love. To love with His love means to love the same way as God loves, to manifest God's love towards another, whether it is towards God Himself, the Lord Jesus Christ, yourself, your Christian neighbor, or towards anyone else. God tells His children today (all who have the spirit of Christ within us) how to Godly-love by means of His previously-revealed written Word and also via our holy spirit-life whereby we receive information from Him regarding how to love in different specific situations. It is the carrying out of God's commandments, His Word, which is the correct usage or way to manifest God's kind of love according to His will (refer to I Corinthians chapter 13 and I John 5:1-3). It is not the same as the brotherly or friendly kind of love, nor is it the same as the emotional/feelings/sexual kind of love.
Paul also calls them his joy and crown – right then, these holy-people caused him to rejoice and they were the evidence of his joy, plus these holy-people were the crown he had already received (the victory-wreath, as a garland on his head being the victor of a contest) because of his having carried-out God's and the Lord Jesus Christ's will towards them. This fact will not change because these Philippian Christians will remain children of God. They had already received holy spirit and they will also be gathered together when Christ comes to gather all the church with him.
Regarding the walk/behavior category, Paul writes in verse 1: it is with the consequence or result of what I have just written, my loved1 and earnestly-longed-for brothers, my joy and crown, that in this manner (as I have written) you must stand-firm in the Lord (stand fast in the Lord as opposed to falling in the walk/behavior category). Stand-firm within the sphere of action of the Master who is our Lord Jesus Christ, loved-people1 (you are people who are Godly-loved, not only by me but also by God and the Lord Jesus Christ).
[Reference: I Corinthians 9:25; Philippians 1:8 and 27; I Thessalonians 2:19 and 20.]
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True Bible Study - Philippians
(May) the grace of the Lord Jesus Christ (be) with your spirit, with-certainty.

