"An Established Fact . . ." Herman Bavinck on the True Humanity of Christ in the Incarnation

Promised under the Old Testament as the Messiah who is to come as a descendant of a woman of Abraham, Judah, and David, [Jesus] is conceived in the fullness of time by the Holy Spirit in Mary (Matt. 1:20) and born of her, of a woman (Gal. 4:4). He is her son (Luke 2:7), the fruit of her womb (Luke 1:42), a descendant of David and Israel according to the flesh (Acts 2:30; Rom. 1:3; 9:5), sharing in our flesh and blood, like us in all things, sin excepted (Heb. 2:14, 17–18; 4:15; 5:1); a true human, the Son of Man (Rom. 5:15; 1 Cor. 15:21; 1 Tim. 2:5), growing up as an infant (Luke 2:40, 52), experiencing hunger (Matt. 4:2), thirst (John 19:28), weeping (Luke 19:41; John 11:35), being moved (John 12:27), feeling grief (Matt. 26:38), being furious (John 2:17), suffering, dying. For Scripture it is so much an established fact that Christ came in the flesh that it calls the denial of it anti-Christian (1 John 2:22). And it teaches that Christ assumed not only a true but also a complete human nature.

. . . But Scripture clearly states that Jesus was completely human and ascribes to him all the constituents of human nature, not only a body (Matt. 26:26; John 20:12; Phil. 3:21; 1 Pet. 2:24), flesh and blood (Heb. 2:14), bones and a side (John 19:33–34), head, hands, and feet (Matt. 8:20; Luke 24:39) but also a soul (Matt. 26:38), spirit (Matt. 27:50; Luke 23:46; John 13:21), consciousness (Mark 13:32), and a will (Matt. 26:39; John 5:30; 6:38; etc.). Apollinarianism [a Christological heresy], accordingly, has at all times been condemned by the Christian church and Christian theology. They understood the important issue involved in the matter: “For the whole Christ assumed the whole me that he might grant salvation to the whole me, for what is unassumable is incurable” [citing from John of Damascus, the Orthodox Faith, III.6]

From Herman Bavinck, Reformed Dogmatics: Sin and Salvation in Christ, 3.296-297