Lk 24:27, Jn 5:46, Jn 1:45, Rom 1:2-4, Gen 3:15, Gen 22:17-18, Num 21:9, Deut 18:15, Ps 16:10, P 22:1, Ps 132:11, Isa 7:14, Isa 9:6, Jer 23:5, Jer 33:14-15, Ezk 37:25, Dan 9:24, Mal 3:1

Jesus testifies that the Old Testament is the testimony of Christ and that Christ is Himself. (Jn 5:39, Lk 24:27, Jn 5:46)

Jn 5:39 Search the scriptures; for in them ye think ye have eternal life: and they are they which testify of me.

Lk 24:27 And beginning at Moses and all the prophets, he expounded unto them in all the scriptures the things concerning himself.

Jn 5:46 For had ye believed Moses, ye would have believed me; for he wrote of me.

The One who Moses wrote in the Law and the other prophets wrote, the Christ is Jesus. (Jn 1:45, Rom 1:2-4)

Jn 1:45 Philip findeth Nathanael, and saith unto him, We have found him, of whom Moses in the law, and the prophets, did write, Jesus of Nazareth, the son of Joseph.

Rom 1:2 (Which he had promised afore by his prophets in the holy scriptures,) 3 Concerning his Son Jesus Christ our Lord, which was made of the seed of David according to the flesh; 4 And declared to be the Son of God with power, according to the spirit of holiness, by the resurrection from the dead:

The Old Testament describes Christ.

In the Old Testament, it was prophesied that Christ would die to forgive our sins and that He would also break Satan's head. (Gen 3:15)

Gen 3:15 And I will put enmity between thee and the woman, and between thy seed and her seed; it shall bruise thy head, and thou shalt bruise his heel.

In the Old Testament, it was foretold that Christ would come as a descendant of Abraham. (Gen 22:17-18)

Gen 22:17 That in blessing I will bless thee, and in multiplying I will multiply thy seed as the stars of the heaven, and as the sand which is upon the sea shore; and thy seed shall possess the gate of his enemies; 18 And in thy seed shall all the nations of the earth be blessed; because thou hast obeyed my voice.

In the Old Testament, it was foretold that Christ would die on the cross. (Num 21:9)

Num 21:9 And Moses made a serpent of brass, and put it upon a pole, and it came to pass, that if a serpent had bitten any man, when he beheld the serpent of brass, he lived.

In the Old Testament, it was foretold that God would raise up a prophet like Moses, Christ. (Deut 18:5)

Deut 18:5 For the Lord thy God hath chosen him out of all thy tribes, to stand to minister in the name of the Lord, him and his sons for ever.

In the Old Testament it was foretold that Christ would be rejected by God. (Ps 22:1)

Ps 22:1 My God, my God, why hast thou forsaken me? why art thou so far from helping me, and from the words of my roaring? , In the Old Testament, the resurrection of Christ was foretold. (Ps 16:10)

Ps 16:10 For thou wilt not leave my soul in hell; neither wilt thou suffer thine Holy One to see corruption.

In the Old Testament, it was foretold that Christ would come as a descendant of David. (Jer 23:5)

Jer 23:5 Behold, the days come, saith the Lord, that I will raise unto David a righteous Branch, and a King shall reign and prosper, and shall execute judgment and justice in the earth.

In the Old Testament it was foretold that Christ would be born of a virgin. (Gen 3:15, Isa 7:14)

Gen 3:15 And I will put enmity between thee and the woman, and between thy seed and her seed; it shall bruise thy head, and thou shalt bruise his heel.

Isa 7:14 Therefore the Lord himself shall give you a sign; Behold, a virgin shall conceive, and bear a son, and shall call his name Immanuel.

In the Old Testament it was foretold that Christ would be born. (Isa 9:6)

Isa 9:6 For unto us a child is born, unto us a son is given: and the government shall be upon his shoulder: and his name shall be called Wonderful, Counsellor, The mighty God, The everlasting Father, The Prince of Peace.

In the Old Testament it was foretold when Christ would die. (Dan 9:24-26)

Dan 9:24 Seventy weeks are determined upon thy people and upon thy holy city, to finish the transgression, and to make an end of sins, and to make reconciliation for iniquity, and to bring in everlasting righteousness, and to seal up the vision and prophecy, and to anoint the most Holy. 25 Know therefore and understand, that from the going forth of the commandment to restore and to build Jerusalem unto the Messiah the Prince shall be seven weeks, and threescore and two weeks: the street shall be built again, and the wall, even in troublous times. 26 And after threescore and two weeks shall Messiah be cut off, but not for himself: and the people of the prince that shall come shall destroy the city and the sanctuary; and the end thereof shall be with a flood, and unto the end of the war desolations are determined.

In the Old Testament, it was foretold that the one who prepares the way for Christ would come first, and then Christ would come. (Mal 3:1)

Mal 3:1 Behold, I will send my messenger, and he shall prepare the way before me: and the Lord, whom ye seek, shall suddenly come to his temple, even the messenger of the covenant, whom ye delight in: behold, he shall come, saith the Lord of hosts.