How do we know the doctrine of Christ as our surety is true?

The concept of Christ as our surety is rooted in the covenantal assurance found throughout the Bible. Hebrews 7:22 declares that Jesus is the guarantor of a better covenant. Just as Judah in Genesis 43:9 acted as a surety for Benjamin, Jesus Christ acts as the surety for His people, ensuring that He will fulfill all that is necessary for their redemption. He has borne our sins and has fully satisfied the demands of God's law on our behalf. The certainty of His promise is affirmed with His declaration that He will not lose any of those the Father has given Him, thus demonstrating His unwavering commitment to bringing us before God. This assurance substantiates our understanding of Christ as our surety and is a cornerstone of Reformed theology.