How do we know that God can save us from our sins?

Exodus 6:6 states that God will redeem His people, emphasizing His power and intent to save from sin. This is mirrored in the New Testament by the sacrificial work of Jesus Christ, who accomplished salvation independently of human effort. The theological concept of total depravity illustrates that we cannot contribute to our salvation; it is through grace alone, by faith in Christ, that we are saved. God's hand has not grown short; He remains fully capable of redeeming even the most lost sinners.