How do we know that Jesus delivers us from sin?

The narrative of David taking Jerusalem powerfully illustrates Jesus' deliverance of His people from sin. Like David, who took the stronghold of Zion against the Jebusites who were a symbol of sin and opposition, Christ conquers the sin that dwells in us. Just as David needed to conquer Jerusalem, believers cannot rid themselves of their sin; rather, we must rely entirely on Christ for deliverance. Romans 7:24 exemplifies this struggle and assurance: 'O wretched man that I am! Who shall deliver me from the body of this death? I thank God through Jesus Christ our Lord.' Our hope lies in Christ's ability to deliver and cleanse us through His blood.