Kenosis is a Greek word for emptiness, which is used as a theological term. The ancient Greek word κένωσις kénōsis means an "emptying", from κενός kenós "empty". The word is mainly used, however, in a Christian theological context, for example Philippians 2:7, "Jesus made himself nothing (ἐκένωσε ekénōse) ..." (NIV) or "...he emptied himself..." (NRSV), using the verb form κενόω kenóō "to empty". See also Strong's G2758

In Christian theology, Kenosisis the concept of the 'self-emptying' of one's own will and becomingentirely receptive to God and his perfect will. It is used both as anexplanation of the Incarnation, and an indication of the nature of God's activity and condescension.

An apparent dilemma arises when Christian theology posits a God outside of time and space, who enters into time and space to become human (Incarnate). The doctrine of Kenosis attempts to explain what the Son of God chose to give up in terms of his divine attributes, in order to assume human nature. Since the incarnate Jesus is simultaneously fully human and fully divine, Kenosis holds that these changes were temporarily assumed by God in his incarnation, and that when Jesus ascended back into heaven following the resurrection, he fully reassumed all of his original attributes and divinity.

Specifically it refers to attributes of God that are thought to be incompatible with becoming fully human. For example, God's omnipotence, omnipresence, omniscience as well as his eternity, infinity, and immutability. Theologians who support this doctrine often appeal to a reading of Philippians 2:5-8.Critics of Kenosis theology argue that the context of Philippians 2:5-8is referring to Jesus voluntarily taking the form of a servant toconceal his divine glory (revealed temporarily in the Transfiguration),or to forsaking his place and position in heaven to dwell among men, asopposed to forsaking his divine attributes or nature (see syncatabasis).

[source: Wikipedia]