23 for all have sinned and fall short of the glory of God, 24 being justified freely by His grace through the redemption that is in Christ Jesus, 25 whom God set forth as a propitiation by His blood, through faith, to demonstrate His righteousness, because in His forbearance God had passed over the sins that were previously committed, 26 to demonstrate at the present time His righteousness, that He might be just and the justifier of the one who has faith in Jesus.” (Romans 3:23–26, NKJV)
Let that soak in for a moment. Our sins make us guilty before God and under His wrath. Our just punishment is eternal death (Rom. 1:18; 3:19; 6:23). But, God has provided an offering for our sins that appeases His wrath against sin (1 Jno. 2:2; 4:10). That offering is His Son, Jesus Christ. God’s grace justifies sinners by the blood of Christ (Rom. 3:24; 5:9). His blood appeases God’s wrath, redeeming us from sin’s bondage and death (Rom. 5:10; Heb. 10:1-10). The Law of Moses could not do this. God’s power to save sinners is in the gospel of Christ (Rom. 1:16; 3:20-22). By the offering of His Son, God showed Himself to be just (innocent, holy) when He bore with previous sins (Rom. 3:26; Acts 17:30). Now, He commands all sinners everywhere to repent (Acts 17:30-31). Thus, God is vindicated. The death of Jesus shows God was just in forbearing with “sins that were previously committed.” And, His righteousness is seen in justifying those who have faith in Jesus (Rom. 3:26). The faith (the gospel) produces personal faith that obeys the word of Christ (Rom. 1:16-17; 10:17; 6:17-18). Believing sinners obey Christ’s command to be baptized, which is into His death so their sins will be washed away by His blood (Mk. 16:16; Rom. 6:3; Acts 22:16).