How do we know Jesus fulfilled Old Testament prophecies?

The fulfillment of Old Testament prophecies by Jesus is a significant aspect of His ministry, evidenced by the events leading up to His crucifixion, such as His triumphant entry into Jerusalem. John 12 recounts how Jesus rode into the city on a donkey, fulfilling the prophecy from Zechariah 9:9. Moreover, His miracles, like raising Lazarus, stirred the crowds and were part of God's divine plan. The Gospel writers often highlight these fulfillments to demonstrate how Jesus is the Messiah foretold in the scriptures, confirming through His life that He is the one sent to save His people and reestablish their relationship with God.