Philippians 2:6-8

who, although He existed in the form and unchanging essence of God [as One with Him, possessing the fullness of all the divine attributes—the entire nature of deity], did not regard equality with God a thing to be grasped or asserted [as if He did not already possess it, or was afraid of losing it]; but emptied Himself [without renouncing or diminishing His deity, but only temporarily giving up the outward expression of divine equality and His rightful dignity] by assuming the form of a bond-servant, and being made in the likeness of men [He became completely human but was without sin, being fully God and fully man]. After He was found in [terms of His] outward appearance as a man [for a divinely-appointed time], He humbled Himself [still further] by becoming obedient [to the Father] to the point of death, even death on a cross.