God had provided salvation through offering His Son on the cross of Calvary, and allowing His blood to be shed to atone for our sins. (Romans 3:25: Hebrews 9:22).
We are saved and justified when we recognize ourselves as sinners, and put our trust in Christ as the Son of God and His finished work on the cross of Calvary. Salvation is by grace through faith plus nothing. (Romans 3:24 and 4:5; Ephesians 2:8, 9).