How do we know that Christ is the answer to our hard questions?

In the sermon, the preacher emphasizes that Christ is the ultimate answer to the hard and vital questions of life and eternity. For instance, questions about how a holy God can justify sinners are answered through Christ's redemptive work. Romans 3:24 states that we are justified freely by His grace through the redemption that is in Christ Jesus. The beauty of the gospel is that Jesus is not only the one who provides answers but is Himself the answer, as He reconciles God's justice with His mercy through His sacrificial death. This comprehensive understanding points to the necessity of understanding Christ to grasp the true nature of salvation and God's character.