How do we know that Christ's birth fulfills prophecy?

Christ's birth in Bethlehem is a fulfillment of prophecy, as confirmed by the decree of Caesar Augustus that brought Mary and Joseph there, demonstrating God's sovereignty over historical events to accomplish His will. Micah 5:2 foretold that a ruler would come from Bethlehem, while Isaiah 46:10 emphasizes how God declares the end from the beginning. The circumstances of Christ's birth validate God’s promise and plan for salvation, proving His control over all events to bring about redemption for His people.