1. His resurrection is a proof of his Christship

And Paul, as his manner was, went in unto them, and three sabbath days reasoned with them out of the scriptures,
Opening and alleging, that Christ must needs have suffered, and risen again from the dead; and that this Jesus, whom I preach unto you, is Christ. Acts 17:2-3

And declared to be the Son of God with power, according to the spirit of holiness, by the resurrection from the dead: Romans 1:4

2. His resurrection is his victory over death

Knowing that Christ being raised from the dead dieth no more; death hath no more dominion over him. Romans 6:9

I am he that liveth, and was dead; and, behold, I am alive for evermore, Amen; and have the keys of hell and of death. Revelation 1:18

3. His resurrection is a proof of the hope of our resurrection

Blessed be the God and Father of our Lord Jesus Christ, which according to his abundant mercy hath begotten us again unto a lively hope by the resurrection of Jesus Christ from the dead, 1 Peter 1:3

[5]For if we have been planted together in the likeness of his death, we shall be also in the likeness of his resurrection:
[8]Now if we be dead with Christ, we believe that we shall also live with him: Romans 6:5,8

Now if Christ be preached that he rose from the dead, how say some among you that there is no resurrection of the dead?
But if there be no resurrection of the dead, then is Christ not risen: 1 Corinthians 15:12-13

But now is Christ risen from the dead, and become the firstfruits of them that slept.
For since by man came death, by man came also the resurrection of the dead. 1 Corinthians 15:20-21

4. We are saved by his resurrection

For if, when we were enemies, we were reconciled to God by the death of his Son, much more, being reconciled, we shall be saved by his life. Romans 5:10

5. By his resurrection he brought immortality to light

But is now made manifest by the appearing of our Saviour Jesus Christ, who hath abolished death, and hath brought life and immortality to light through the gospel: 2 Timothy 1:10