What are the reasons or purposes for the Incarnation? There are twelve specific reasons why the Incarnation occurred.
First, the Incarnation was conditioned by human sin. Luke 19:10 states:
For the Son of man came to seek and to save that which was lost.
A more extended passage that states this as a reason for the Incarnation is John 3:13‑21. The purpose of the Incarnation was to save sinners. In order to pay the penalty for sin, Yeshua had to be made “like unto” or “in the likeness of” sinful flesh. He was not made sinful, but in outward appearance, He looked like any other man. It was necessary for Him to be made in the likeness of sinful flesh, because He came for the purpose of dying for sinners. The Incarnation was conditioned by human sin in that human sin necessitated the Incarnation. As Hebrews 2:14 states, it was necessary for Him to become a sharer in flesh and blood in order to deal with the issue of sin.
Secondly, the Incarnation was to reveal God to man concerning the truths of the Father (Mat. 11:27; Jn. 1:18; 14:9). He came for the purpose of revealing the Father, according to John 1:18:
No man has seen God at any time; the only begotten Son, who is in the bosom of the Father, he has declared him.
He came to reveal the Father; therefore, in His sermons and discourses, He revealed the nature of the Father. In John 14:8‑9, when one of His own disciples eventually asked Jesus: Show us the Father, He answered: If you have seen me, you have seen the Father. Everything that is true of the nature of the Father is true of the Son.
Thirdly, the Incarnation was to provide believers with an example for living (I Pet. 2:21; I Jn. 2:6). In His humanity, Yeshua lived a lifestyle that the believer should imitate. This includes not only during the good times, but also in bad times. Not only is His strength to be their example, but also His sufferings are to be their example. He underwent a suffering in a meek manner and, they too, should undergo their suffering in the same way. He became a man to provide an example for living.
Fourthly, the Incarnation was to provide a sacrifice for sin (Heb. 2:9; 10:1‑10; I Jn. 3:5). He came as the Incarnate Man to provide a sacrifice for sin. While animal sacrifices were allowed temporarily, all they could ever do was cover the sins of the Old Testament saints; they could never take away the sins of the Old Testament saints. The removal of sin required better blood than animal blood. The better blood was human blood, but it had to be sinless human blood. This ruled out every human being that had existed since the fall of Adam with one exception, and that was the God‑Man, Yeshua. As a result of the Incarnation, He became a man. Being in the form of a man, He had human blood and, therefore, better blood than animal blood. Jesus had sinless human blood; for that reason, He was able to become the sacrifice for sin.
Fifth, the Incarnation was to destroy the works of the Devil; to render his works inoperative (Jn. 12:31;16:11; Col. 2:15; Heb. 2:14; I Jn. 3:8). Of these five passages, perhaps the clearest statement of this fact is Hebrews 2:14:
Since then the children are sharers in flesh and blood, he also himself in like manner partook of the same; that through death he might bring to nought him that had the power of death, that is, the devil; . . .
Sixth, the Incarnation was to enable Yeshua to be a merciful High Priest. This is especially stressed in the Book of Hebrews (Heb. 2:17‑18; 5:1‑2; 8:1; 9:11‑12, 14). Hebrews 2:17‑18 follows the statement on the Incarnation in verse 14, and then states that it made Him a merciful and faithful high priest. The Hebrews 5 passage emphasizes that for one to be a genuine priest, he had to be human. Thus, if Jesus had not become a real man, He could not have been a high priest. By becoming a man, by becoming Incarnate, He could become, and continues to be, the High Priest of believers. This also enables Him to offer sacrifices, as only priests could do. He was able to offer a better sacrifice¾His own blood¾not animal blood.
Seventh, the Incarnation was to fulfill the Davidic Covenant. The Davidic Covenant promised that a Descendent of David would sit upon David’s throne forever. It was necessary for Yeshua to become a real man through the Virgin Mary, because she was a member of the House of David, therefore, Jesus was a member of the House of David. Because He is both God and man, He now lives forever, and He will rule upon David’s throne forever (Lk. 1:31‑33, 68‑70).
Eighth, the Incarnation was to confirm the promises of God (Rom. 15:8‑9) that were predicted in the Old Testament. In order for these prophecies to be fulfilled, the Incarnation was necessary.
Ninth, the Incarnation provided for Yeshua the Messiah to become highly exalted (Phil. 2:9‑11). The exaltation could come only by means of suffering. God, as God only, is incapable of suffering. But when God the Son became a man, He then became capable of suffering. He certainly did suffer; He suffered humiliation and much more. As a result, He became highly exalted. This, too, was the purpose of the Incarnation.
Tenth, the Incarnation was to restore dominion over the earth to man (Heb. 2:5‑9). It was to man that God gave dominion over the earth. But man lost it when Satan caused him to fall; Satan usurped the authority over the earth which had been given to man (Jn. 12:31;14:30;16:11; II Cor. 4:4; I Jn. 5:19). The Messiah defeated Satan; now, as a man, He must restore man’s dominion over the earth, which He will do in the Kingdom.
Eleventh, the Incarnation was to bring many sons to glory (Heb. 2:10‑11). This, too, required the Incarnation.
And twelfth, the Incarnation was to deliver believers from the fear of death (Heb. 2:15). This, too, was accomplished through the Incarnation.
 This post is a modified version of Dr. Arnold Fruchtenbaum’s original Messianic Bible Study. The full version may be obtained here.