The Law became the foundation for Israel's purposes. But when the New Covenant arrived "by the works of the Law no flesh will be justified in His sight" (Ro 3:20). The Old Covenant had validity but it culminated in the new because the old functioned only temporarily as a type. Christ had been sent "under the Law so that He might redeem those who were under the Law" (Gal 4:4-5). Now "Christ is the end of the law for righteousness to everyone who believes" (Ro 10:4). "The promise to Abraham . . . was not through the Law, but through the righteousness of faith" (4:13). "Apart from the Law the righteousness of God has been manifested . . . even the righteousness of God through all those who believe" (3:21). "He is a Jew who is one inwardly; and circumcision is that which is of the heart, by the Spirit, not by the letter" (2:29). "The blood of Christ . . . [will] cleanse your conscience from dead works" (Heb 9:14). This testimony has been presented over the centuries "by the Law and the Prophets" (Ro 3:21) and is not just an afterthought.
"When He comes into the world, He says . . . a body You have prepared for Me" (Heb 10:5). "God sent forth His Son, born of a woman" (Gal 4:4). "Since the children share in flesh and blood, He Himself likewise also partook of the same" (Heb 2:14). He was "born, not of blood nor of the will of the flesh of the will of man, but of God" (Jn 1:13). "God so loved the world, that He gave His only begotten Son" (3:16). "The Word became flesh, and dwelt among us, and we saw His glory" (1:14). "I am the Lord, I have called You in righteousness, I will also hold You by the hand and watch over You, and I will appoint You as a covenant to the people, as a light to the nations" (Isa 42:6). "'Behold, I have come to do Your will'" (Heb 10:9). "'Behold, I come; in the scroll of the book it is written of Me. I delight to do Your will, O My God; Your Law is within My heart'" (Ps 40:7-8). He "emptied Himself, taking the form of a bond-servant, being made in the likeness of men" (Php 2:7). "'The Father Himself who sent Me has given Me a commandment as to what to say and what to speak'" (Jn 12:49). "'I lay it [my life] down on My own initiative . . . this commandment I received from My Father'" (10:18).