Phil 2:5-8
"Have this mind among yourselves, which is yours in Christ Jesus, who, though he was in the form of God, did not count equality with God a thing to be grasped, but emptied himself, by taking the form of a servant, being born in the likeness of men."
Morphe theou — form of God: the essential divine nature. Ekenosen — emptied himself: the kenosis (from the Greek kenos, empty). Christ did not empty himself of deity, but of divine privileges and prerogatives. The movement is downward: God → servant → death → death on a cross.
Phil 2:9-11
"Therefore God has highly exalted him and bestowed on him the name that is above every name, so that at the name of Jesus every knee should bow... and every tongue confess that Jesus Christ is Lord."
Exaltation as a response to humiliation. The name above every name is Kyrios (Lord) — the divine title of the OT (YHWH). The universal confession 'Jesus Christ is Lord' is the oldest creed of the Church. Christ’s voluntary humiliation is the model for Christian humility.