God presented Him to demonstrate His righteousness at the present time, so that He would be righteous and declare righteous the one who has faith in Jesus.
God judges sin and sinfulness by requiring someone to die for it.
Jesus died the death we should have died.
Jesus died because God hates sin.
God justifies sinners by faith in Jesus Christ.
Jesus lived the life we should have lived.
Jesus lived because God requires righteousness.
God proves that He hates sin and loves us by sending His one and only begotten Son to live and die for us.