What does the Bible say about God's righteousness in salvation?

The Bible states in Romans 9:14 that there is no unrighteousness with God, particularly in the process of salvation. This is critical because it establishes that God's character is holy and just. In the gospel, God is revealed to be righteous as He justifies the ungodly. The justice of God requires that sin be punished, and this was achieved through Christ's sacrifice at the cross, where He bore our sins in His body. This act fulfilled the demands of justice without compromising God's holiness, allowing Him to declare sinners righteous based on Christ's atoning work.