1Finally, my brothers, rejoice in the Lord! To write the same things to you, to me indeed is not tiresome, but for you it is safe.
2Beware of the dogs; beware of the evil workers; beware of the false circumcision. 3For we are the circumcision, who worship God in the Spirit, and rejoice in Christ Jesus, and have no confidence in the flesh; 4though I myself might have confidence even in the flesh. If any other man thinks that he has confidence in the flesh, I yet more: 5circumcised the eighth day, of the stock of Israel, of the tribe of Benjamin, a Hebrew of Hebrews; concerning the law, a Pharisee; 6concerning zeal, persecuting the assembly; concerning the righteousness which is in the law, found blameless.
7However, I consider those things that were gain to me as a loss for Christ. 8Yes most certainly, and I count all things to be a loss for the excellency of the knowledge of Christ Jesus, my Lord, for whom I suffered the loss of all things, and count them nothing but refuse, that I may gain Christ 9and be found in him, not having a righteousness of my own, that which is of the law, but that which is through faith in Christ, the righteousness which is from God by faith, 10that I may know him and the power of his resurrection, and the fellowship of his sufferings, becoming conformed to his death, 11if by any means I may attain to the resurrection from the dead. 12Not that I have already obtained, or am already made perfect; but I press on, that I may take hold of that for which also I was taken hold of by Christ Jesus.
13Brothers, I don’t regard myself as yet having taken hold, but one thing I do: forgetting the things which are behind and stretching forward to the things which are before, 14I press on toward the goal for the prize of the high calling of God in Christ Jesus. 15Let us therefore, as many as are perfect, think this way. If in anything you think otherwise, God will also reveal that to you. 16Nevertheless, to the extent that we have already attained, let’s walk by the same rule. Let’s be of the same mind.
17Brothers, be imitators together of me, and note those who walk this way, even as you have us for an example. 18For many walk, of whom I told you often, and now tell you even weeping, as the enemies of the cross of Christ, 19whose end is destruction, whose god is the belly, and whose glory is in their shame, who think about earthly things. 20For our citizenship is in heaven, from where we also wait for a Savior, the Lord Jesus Christ, 21who will change the body of our humiliation to be conformed to the body of his glory, according to the working by which he is able even to subject all things to himself.
Church (Gk. ἐκκλησία, ekklesia). (9; Matt 16:18; 18:17; Acts 8:1, Eph 1:22, Rev 1:4, 11, 20; 2:1) Strong’s 1577
The word church [1] is used one hundred fourteen times in the NT. It is formed from the preposition ἐκ (ek), “out of,” and the verb καλέω (kaleo), to “call.” It literally means “those who are called out.” It is used widely in Greek literature to refer to a regularly summoned legislative body, a casual gathering, or a congregation with shared beliefs. The word is used in the Greek Old Testament for the Hebrew word קהל (qahal), the congregation of Israel. It is used in one passage in the NT for a gathering other than church, Acts 19:30, 33. The typical use in the NT is to refer to a local church, that is, a particular body of believers (Rom 16:1; 2 Cor 1:1Gal 1:22; 1 Thess 1:1). This word is also used to refer to the universal church, that is, all true Christians (believers in Jesus Christ) from the Day of Pentecost until the rapture (Acts 12:1; Col 1:18). It is important to note that from the perspective of the NT, the word “church” [1] only ever refers to the people of God and their assembly. Even though modern Christians use it to refer to the “church” building, it is never used this way in the NT. To think and speak biblically about “church” is to think and speak about saved people universally, or a congregation of believers committed to one another and who assemble regularly. In NT thought, the assembly of God’s people is a powerful and unique expression of the presence of God (Eph 2:21). The church is never mentioned in the OT, with its first mention in the Bible in Matt 16:18.
[1] The origin of the English word "church" is from the Middle English word chirche, from Old English cirice, (https://www.merriam-webster.com/dictionary/church) and is related to the German word Kirche, and from the Greek word kuriakon κυριακός, η, ον, "those belonging to the Lord." BAG, p. 459.