How do we know Jesus as our Savior is true?

The truth of Jesus as our Savior is established through His fulfillment of the Old Testament prophecies which depict Him as a suffering servant and sacrificial lamb. As referenced in Isaiah 53, His afflictions and ultimate sacrifice were foreseen long before His incarnation. The New Testament further reveals this truth as Jesus takes on the sins of the world, providing atonement and redemption through His blood (1 Peter 1:18-19). The continuity of this message throughout Scripture reinforces the assurance that He is indeed the promised Messiah, who saves His people from their sins.