How do we know that salvation is established through Christ?

The Bible points to Christ as the focal point of salvation, illustrating through various scriptures that His sacrifice was necessary for the atonement of sin. Ephesians 1:3 states that all spiritual blessings come through Christ, affirming that without Him, there is no true fellowship with God. Moreover, Romans 3:24 emphasizes that we are justified freely by His grace through redemption in Christ Jesus, demonstrating that our salvation is solely grounded in His sacrificial love and righteousness, not our own works.