The answer
Christ, being God, took up full humanity, being a spirit and a body. If God had taken the body of a man without taking a spirit, then Christ would have been a redeemer of animals. However, He took a human body and spirit in order to redeem man.
This full humanity (human body and spirit) is referred to as the humanity. Of course, the human spirit is different than the divinity.
This human spirit is what He gave up on the Cross, for there was a separation of the human spirit and the body. The Divinity, however, remains united to both the spirit and the body separately.
His Holiness Pope Tawadros II
Notes
37 Translator’s note: Matt. 27:50; Luke 23:46; John 19:30.
Pope Tawadros II, My Faith: A Series of Dialogues on the Creed (Coptic Orthodox Patriarchate, 2014), 100.
