Justification is an act of God's free grace, wherein he pardoneth all our sins[a], and accepteth us as righteous in his sight[b], only for the righteousness of Christ imputed to us[c], and received by faith alone[d].
a:
Romans 3:24-25
Romans 4:6-8
b:
2 Corinthians 5:19
2 Corinthians 5:21
c:
Romans 5:17-19
d:
Galatians 2:16
Philippians 3:9