How does Christ fulfill the role of our substitute?

In Christian theology, Christ fulfills the role of our substitute by taking upon Himself the punishment deserved for our sins. The sermon illustrates this through the example of Uzzah touching the ark, emphasizing that no one can touch God without a substitute. As 2 Corinthians 5:21 states, Christ became sin for us so that we might become the righteousness of God in Him. This substitutionary atonement is vital for believers, as it provides the only means through which they are reconciled to God, allowing them to approach Him boldly as seen in Hebrews 10:19-22.