Isaiah prophesied that the Messiah (Christ) that he would be both the Father & the Son

Isa 9:6-7 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. Of the increase of his government and peace there shall be no end, upon the throne of David, and upon his kingdom, to order it, and to establish it with judgment and with justice from henceforth even for ever. The zeal of the LORD of hosts will perform this.

Isaiah prophesied the Messiah (Christ) would be wounded

Isa 53:1-12 Who hath believed our report? and to whom is the arm of the LORD revealed? For he shall grow up before him as a tender plant, and as a root out of a dry ground: he hath no form nor comeliness; and when we shall see him, there is no beauty that we should desire him. He is despised and rejected of men; a man of sorrows, and acquainted with grief: and we hid as it were [our] faces from him; he was despised, and we esteemed him not. Surely he hath borne our griefs, and carried our sorrows: yet we did esteem him stricken, smitten of God, and afflicted. But he was wounded for our transgressions, he was bruised for our iniquities: the chastisement of our peace was upon him; and with his stripes we are healed. All we like sheep have gone astray; we have turned every one to his own way; and the LORD hath laid on him the iniquity of us all. He was oppressed, and he was afflicted, yet he opened not his mouth: he is brought as a lamb to the slaughter, and as a sheep before her shearers is dumb, so he openeth not his mouth. He was taken from prison and from judgment: and who shall declare his generation? for he was cut off out of the land of the living: for the transgression of my people was he stricken. And he made his grave with the wicked, and with the rich in his death; because he had done no violence, neither [was any] deceit in his mouth. Yet it pleased the LORD to bruise him; he hath put him to grief: when thou shalt make his soul an offering for sin, he shall see his seed, he shall prolong [his] days, and the pleasure of the LORD shall prosper in his hand. He shall see of the travail of his soul, [and] shall be satisfied: by his knowledge shall my righteous servant justify many; for he shall bear their iniquities. Therefore will I divide him [a portion] with the great, and he shall divide the spoil with the strong; because he hath poured out his soul unto death: and he was numbered with the transgressors; and he bare the sin of many, and made intercession for the transgressors.

David prophesied that the Messiah (Christ) hands and feet would be pierced

Psa 22:16 For dogs have compassed me: the assembly of the wicked have inclosed me: they pierced my hands and my feet.

Zechariah prophesied that the Messiah (Christ) would be pierced

Zec 12:10 And I will pour upon the house of David, and upon the inhabitants of Jerusalem, the spirit of grace and of supplications: and they shall look upon me whom they have pierced, and they shall mourn for him, as one mourneth for his only son, and shall be in bitterness for him, as one that is in bitterness for his firstborn.

John prophesied they shall look upon the Messiah (Christ) whom they have pierced

Jhn 19:34-37 But one of the soldiers with a spear pierced his side, and forthwith came there out blood and water. And he that saw it bare record, and his record is true: and he knoweth that he saith true, that ye might believe. For these things were done, that the scripture should be fulfilled, A bone of him shall not be broken. And again another scripture saith, They shall look on him whom they pierced.

Acts tells us that holy ghost (god) purchased us with his own blood, showing us that God (Father) is the Messiah (Christ) who was pierced

Acts 20:28 Take heed therefore unto yourselves, and to all the flock, over the which the Holy Ghost hath made you overseers, to feed the church of God, which he hath purchased with his own blood.

Hebrews says by the Messiah (Christ) his own blood

Hbr 9:11 - 14 But Christ being come an high priest of good things to come, by a greater and more perfect tabernacle, not made with hands, that is to say, not of this building; Neither by the blood of goats and calves, but by his own blood he entered in once into the holy place, having obtained eternal redemption for us. For if the blood of bulls and of goats, and the ashes of an heifer sprinkling the unclean, sanctifieth to the purifying of the flesh: How much more shall the blood of Christ, who through the eternal Spirit offered himself without spot to God, purge your conscience from dead works to serve the living God?

Hbr 13:12 Wherefore Jesus also, that he might sanctify the people with his own blood, suffered without the gate.

1 John says that those who deny the Messiah (Christ) is both Father and Son is a Liar & Antichrist

1Jo 2:22 Who is a liar but he that denieth that Jesus is the Christ? He is antichrist, that denieth the Father and the Son.

Revelations says that those who pierced Messiah (Christ) shall see him

Rev 1:5-7 And from Jesus Christ, who is the faithful witness, and the first begotten of the dead, and the prince of the kings of the earth. And hath made us kings and priests unto God and his Father; to him be glory and dominion for ever and ever. Amen. Unto him that loved us, and washed us from our sins in his own blood,

Behold, he cometh with clouds; and every eye shall see him, and they also which pierced him: and all kindreds of the earth shall wail because of him. Even so, Amen.