In the Orthodox tradition, Jesus is called Messiah, the Savior, and the God-man.
The latter term appears in Christianity in the first centuries during the debate about the divinity and humanity of Jesus Christ.
Naming God-man Savior indicatesduality of nature (nature) in Christ Jesus. Thus, according to the teachings of the Orthodox Church, the Lord Jesus Christ is the true God - the God of their merits in a literal sense, as well as a perfect man. Orthodox dogmatic teaching proclaims to people that in a single second person of the Holy Trinity (Jesus Christ) after the time of the Incarnation was two natures: divine and human. These two natures in Christ does not merge into one, not divided, not into one another, but from the moment of the Incarnation staying inseparable in a single second person of the Holy Trinity.
Speaking of Christ as the God-man, you need torealize that Jesus has the fullness of divine power, equal to God the Father and the Holy Spirit. Christ possesses all the divine attributes. The only difference on the deity of Christ by God the Father and God the Holy Spirit is the "birth" of God the Father. Orthodox theology gives the distinction between the divine persons in terms of birth and origin. Thus, God the Father, no one is born and does not proceed, the Son of God is born of God the Father and God the Holy Spirit proceeds from the Father.
It should be said about the humanity of Christ. Saviour was similar in all people, yet without sin. Christ was a perfect man, a man without sin. Savior, like humans, have been characterized by human emotions, sadness, joy, the feeling of thirst and hunger. Thus, in the Holy Scripture says that Christ wept over the dead Lazarus, grieved, was thirsty on the cross. These expressions of humanity in Christ are called natural affections, which have nothing to do with sin.