It was in fulfillment of prophecy that He came. God gave the Word to Isaiah many hundreds of years prior to His birth.
Therefore the Lord Himself will give you a sign: Behold, the virgin shall conceive and bear a Son, and shall call His name Immanuel. (Isaiah 7:14)
Our Savior, the Lamb of God, came as a baby into this world to live as we do and to die as a sacrifice which we could not do. He gave His life to pay for all of our sins so that we could have an eternal relationship with God in eternity. Also, because giving our lives and our hearts to Him in believing that He did this for us, we can live for Him in this life and tell others about His sacrifice for our lives.
Jesus, the Son of God, came to place His life in the Father’s hands to pay for our sins and He did exactly that by being a sinless and spotless Lamb give as a willing sacrifice for all of our sins. Here is a link to learn more about the prophecies which He fulfilled in order to be the One prophesied in Scripture.
Salvation comes no other way than by belief in Jesus and the atonement which He provided for us. He did this willingly and not under compulsion so that the prophecy would be fulfilled in His death, burial, and resurrection! Please don’t ignore this gift which was given to each of us IF we will believe in Him and repent of our sins to follow His example in our lives until He returns.