How do we know Christ guarantees our salvation?

The guarantee of our salvation rests firmly on the finished work of Christ, as highlighted in Hebrews 10:19-22. Through His sacrifice, believers gain access to the very presence of God, allowing them to enter with boldness. The assurance does not stem from our own righteousness but from Christ’s blood which cleanses us from guilt and condemnation. This assurance is a result of God’s faithful promise that all His chosen will be saved; thus, we can trust that our standing with Him is secure, as He has made us perfect forever through Christ's singular offering.