So what is the true meaning of Philippians 2:6-11 then?
Jesus Christ, who, existing in the form of God, did not consider equality with God a thing to be seized violently (in equality with God); or the latter words could also be understood as: he did not consider it a thing to which he had to cling at all costs. Since the corresponding Greek (harpagmos) word is used only here by Paul in the Scriptures, there is no other way to determine its meaning than to consider the context in the text. However, since the apostle says later that Jesus Christ exchanged his existence similar to God for existence similar to humans, and took on a human form, it seems more probable that Jesus Christ did not cling at all costs to equality with God, but became similar to us, humans.
Jesus Christ was "in the form of God": the Son, the second divine person, was in divine glory and majesty according to his divine essence and nature. Before the incarnation, his form, or mode of existence, was the glorious and majestic divine existence. The term 'morphe' indicates the mode of appearance or existence, from which the essential property or state of a thing can be known. What is asserted here about Christ is that He possessed existence in a divine manner from eternety. The expression 'en morphe theu' in Genesis 1:26-27 reminds us of the description of human dignity, but the LXX usage (kat’ eikona theu) differs from this.
"Equality with God": the Son was essentially equal to the Father and the Holy Spirit, and before the incarnation, in the manifestation of divine glory and majesty. Which He should grasp as booty, robbery: The rare word 'harpagmos' elsewhere only appears in the active sense of "robbery," which loses its meaning in this context. Based on its analogy with the more common 'harpagma', expressing consciousness, a passive interpretation is suggested, both in the sense of being seized by something (res rapta), and in the sense of being seized by something (res rapienda). The text context really requires the first meaning, to seize something and cling to it (res rapta et retinenda). The latter (res rapienda) is favored by those who see Christ's divine behavior as opposed to Adam's. But what did Christ have to seize, if He already existed "in the form of God"?
Therefore, Paul writes to the Philippians that you should have the same self-denying, humbling love as Christ's. Although he possessed a divine nature and reality, and it would not have been presumptuous to regard divine attributes as his own: he stripped himself of this infinite majesty, and taking on human nature, became completely similar to humans, except for sin, and appeared externally only as a human. Others interpret it this way: He was indeed in possession of his divine nature, but did not want to boast with it, to show it off as his spoils in the triumphal procession of the victor: but he hid it, etc. He renounced the latter, the appearance in divine glory and majesty, stripped himself of it, or as the apostle says: he emptied himself when he took on the form of a servant and became like humans. He already was truly, properly, and essentially God from eternity, and by taking the form of a servant, became truly a man, and as man the servant of God, but remaining always God as before.
The apostle does not simply say that Christ became human, because he wants to express that great difference that exists between the second divine person who became human and the rest of humans: He was not just what his appearance showed, but God too. In appearance, he appeared as a human: according to the Greek text, this sentence should be connected to the next one, as follows: When he appeared in appearance as a human, he humbled himself.
"He emptied Himself": This phrase contributed to the development of "kenotic" Christologies, but here it is likely used metaphorically, fitting into Paul's usage of the same verb (kenun) in its passive form, meaning "to render powerless, ineffective" (cf. Romans 4:14). So it would mean that Christ made Himself powerless - precisely as powerless as a slave. He took the form of a servant: According to the hymn's conception (cf. Galatians 4:1-11; 4:21–5:1; Romans 8:15), un-redeemed human existence is essentially that of a slave, a captive of spiritual forces, captivity ended by death. Some translate 'dulos' here as "servant" rather than "slave," thus finding a reference in the previous expression to the servant in Isaiah 53:12 ("He poured out His soul [= Himself] unto death"). Although this is linguistically acceptable, it rather disrupts the sequence of preceding thoughts than continuing the reference to the subsequent section on becoming human; and it also nullifies the contrast that the hymn seems to establish between the extremes of dominion (1:9-11) and slavery. He became like men: 'Homoióma' can mean both "identical copy" and "(mere) similarity." Here, probably the former was intended, thus highlighting the paradox that arises as a result of the divine and thus immortal Someone taking on a full human existence, with death as its destiny. The clear implication of this and the following expression, i.e., that the divine Someone "assumed" the human condition "from the outside," creates great difficulties for those who view the hymn as considering only Christ's earthly existence.
"He appeared as a man": The language ('heurétheis', "to be found, experienced", 'schema', "form") emphasizes the way He now appeared in the eyes of God and human beings; that is, simply as a man. 8. He humbled Himself: Christ's selfless behavior, evident in the original decision to take on the servile, mortal human condition, continued throughout His human history. He became obedient unto death: Throughout His life, Christ lived out the demands of human existence imposed by God. Death was not simply the final point of His obedience, but also the undeniable consequence of being fully human and perfectly so in a world alienated from God. Yes, even death on a cross: Crucifixion, the method of execution reserved for slaves and those who had lost all their civil rights, marks the extreme of human humiliation.
So during His earthly life, He renounced the glory due to the Son of God, even taking on the struggles of earthly life and death. His self-emptying was a prerequisite for sacrifice and merit earning. The incarnation was an emptying of himself for Christ living in divine glory, a renunciation of the divine glory to which he had a right by nature. A further manifestation of his humility was then that as a human he took on a servile fate and the death of a slave, renounced his own will, became obedient with such devotion and fidelity, which was crowned by death on the cross. His obedience brought greater honor to the Father than what sin had denied Him. His glorification is that, in His resurrection and ascension, He assumed the power and glory due to the Son of God, and as the God-man, He is the object of our worship.
"He exalted": he raised, placed very high. - He gave him a name that is above every other name: a name whose meaning, content, and power surpass all other names. Which this name is, the apostle tells in the following verse. He exalted him also according to his holy humanity, a name (=dignity) that is above all dignities. As God, he could not be exalted higher. God found Christ's self-denying act to be fitting with His active response. His obedience was "rewarded," but not in a way that would force God's hand; rather, it is God who initiated in His faithfulness to protect, to "vindicate" the one who so completely submitted himself to divine disposition. Beyond the exaltation of the righteous, Christ was also given a unique position of dominion over the entire universe. There is no mention of the resurrection; the hymn moves in different categories of contrasts: humiliation/exaltation; servitude/dominion.
"He gave Him the name": Christ's selflessness validated the glorious grace of God, which operates in its fullness where human understanding does not capture it. The name…which is above every name: the name is obviously Kyrios “Lord,” which substituted the unutterable YHWH in the Christian translations of the LXX. If God Himself “gave Him” the name Kyrios according to his humanity too, Jesus wore it without sacrificing authentic monotheism.
"At the name of Jesus": Paul does not say: at the name of the Son of God, or: at the name of Christ, but names the name that the Son of God bore during his earthly life. The current mention of "Jesus" indissolubly includes the title and the universal authority of the Lord.
"Every knee should bow": Referring to Isaiah 45:23, the hymn attributes to the exalted Christ the universal, eschatological adoration that there is due to God alone (cf. Romans 14:11). In heaven and on earth and under the earth: The tripartite division emphasizes the universality of the adoration. And that Jesus Christ is Lord: The climax of the hymn incorporates an early Christian confession of faith (see 1 Corinthians 12:3; Romans 10:9). He, who in selfless obedience took on the weakness of a slave, now carries universal dominion by divine commission and inauguration (1 Corinthians 3:21-23; Romans 14:9). According to Isaiah, YHWH God claims the honor only for himself, that every knee should bow before him, and every tongue confess him. Paul demands this homage for the glorified God-man, to whom the Father God has given that name, which is due the honor that befits God, and this name is: the name of the Lord. The early Christianity called the resurrected Messiah, sitting at the right hand of God, by this name (1Cor 12:3, Acts 2:36, etc.) and confessed Christ's divinity with this name. To the glory of God the Father: just as the whole work of Jesus as Redeemer, so also the worship of the redeemed ultimately serves the glory of all of our Father, the Father God.