How do we know that Christ's purpose was to redeem humanity?

The redemptive purpose of Christ is a core tenet of Christian doctrine, grounded in the Scriptures. As stated in Luke 19:10, Christ came to seek and save the lost. This mission was outlined from the very beginning, as God promised a Savior in Genesis 3:15, pointing forward to Christ's work. His incarnation as the seed of Abraham, described in Hebrews 2, underscores the necessity of His coming—not as an angel, but as a man—to fulfill the law and bear the penalty for sin. This allows us to understand that the whole of His life, ministry, death, and resurrection forms a cohesive narrative of redemption intended for His people.