How do we know Jesus is a true surety for believers?

The assurance of Jesus as our surety is grounded in His fulfillment of the law and the covenants. As Hebrews 7:25 states, He is able to save to the uttermost all who come to God through Him. Unlike human sureties who may fail, Jesus, being God Himself, has the authority and capability to fulfill His promise. His commitment to stand in our place, bearing the penalty for our sins, underscores the truth of His role as our surety, a promise made before the foundation of the world (Ephesians 1:4).