Jesus’ miracles showed that He was not just a normal man or even a prophet, but that He was and is the Son of God.
Showing Himself to be God incarnate through these miraculous signs, Jesus also fulfilled many Old Testament prophecies regarding the coming Kingdom of God, revealing the heart of God towards those oppressed and suffering. He was more than just a influential leader, here was someone who could dismantle the curse of death itself.
Jesus miracles fulfilled prophecy. Near the beginning of Jesus’ ministry, Jesus stood before a synagogue and read the words of the prophet Isaiah. This prophecy foretold the restoration of all things—the promised Messianic kingdom.
16 And He came to Nazareth, where He had been brought up; and as was His custom, He entered the synagogue on the Sabbath, and stood up to read. 17 And the book of the prophet Isaiah was handed to Him. And He opened the book and found the place where it was written,
18 “The Spirit of the Lord is upon Me,
Because He anointed Me to preach the gospel to the poor.
He has sent Me to proclaim release to the captives,
And recovery of sight to the blind,
To set free those who are oppressed,
19 To proclaim the favorable year of the Lord.”20 And He closed the book, gave it back to the attendant and sat down; and the eyes of all in the synagogue were fixed on Him. 21 And He began to say to them, “Today this Scripture has been fulfilled in your hearing.” (Luke 4:16-20 NASB)
The favor of God was seen throughout Jesus’ earthly life. Jesus set people free from sickness and death—but even more importantly—He frees us from sin itself. Death is the natural consequence of sin. He gave sight to the blind, not just physically, but also spiritually. Jesus was the light of God, bring life to all. As He said, “I am the Light of the world; he who follows Me will not walk in the darkness, but will have the Light of life.” (John 8:12)
The miracles Jesus performed attested to His deity and to the gospel. Jesus encouraged those doubting Him to “believe the works” and realize that God the Father had sent Him. He was not of this earth, but proceeded from God and was God.
37 If I do not do the works of My Father, do not believe Me; 38 but if I do them, though you do not believe Me, believe the works, so that you may know and understand that the Father is in Me, and I in the Father.”(John 10:37-8)
Later in the Gospel of John, it is clear that many still did not believe Jesus, despite the miracles:
But though He had performed so many signs before them, yet they were not believing in Him. (John 12:37)
Despite the unbelief of many during Jesus’ ministry, John wrote down the signs Jesus’ performed so that others might believe Jesus and have life:
30 Therefore many other signs Jesus also performed in the presence of the disciples, which are not written in this book; 31 but these have been written so that you may believe that Jesus is the Christ, the Son of God; and that believing you may have life in His name. (John 20:30-31)
The miracles Jesus performed were not the end-goal, rather they had a greater purpose. That purpose was to show people that He was in fact God. The kingdom of God had begun in their presence. The power of sin, along with death and sickness, had begun to be overcome. The gospel was not a human message, but a divine revelation accompanied by the miraculous.
Even though outwardly our bodies decay and eventually die, we know that Jesus is God and that He brings inward spiritual renewal right now. And we eagerly anticipate, in accordance with the gospel, Jesus’ imminent return. The dead will be raised. Death will be defeated and God will restore all things just as He promises.
16 Therefore we do not lose heart, but though our outer man is decaying, yet our inner man is being renewed day by day. 17 For momentary, light affliction is producing for us an eternal weight of glory far beyond all comparison, 18 while we look not at the things which are seen, but at the things which are not seen; for the things which are seen are temporal, but the things which are not seen are eternal. (2 Corinthians 4:16-18 NASB)