How can God justify sinners without compromising His justice?
Answered in 1 source
God justifies sinners by placing their sins on Christ, satisfying His justice while extending grace.
God’s ability to justify sinners without compromising His justice is rooted in the sacrificial work of Christ. As articulated in 2 Corinthians 5:21, Christ was made sin for us, allowing God to uphold His justice by punishing that sin through Christ's atoning death. By this means, God's justice is not violated; rather, it is fulfilled. God's righteous judgment necessitated a sinless substitute, and Christ, being fully God and fully man, fulfilled that role perfectly. Thus, through faith in Christ, believers are declared righteous, and God's justice is satisfied as He forgives the ungodly.
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