What is the divine “IMPUTATION” that saves man’s soul from death in Hell?

Humanity IS certainly imperfect but the One who entered Time from Eternity and walked among us for 33.5-years was and IS perfect in His divinity and He gave Himself as blood atonement for your benefit in order that the mandates of forgiveness for sin could be made manifest in accordance with Leviticus 17:11 (1 Peter 1:18-19); this sacrifice provided you by Jesus initiates the IMPUTATION-gifting of the perfection of Jesus over your life and though YOU are not perfect in the flesh, our Heavenly Father declares you “perfect” – adjudicates you “not guilty” by New Covenant promise (Hebrews 8:12); this, not because of your own self-righteousness or behavior or work or efforts, but on account of Jesus’ faithfulness and HIS perfection…this is why Jesus is our “propitiation” for sin…Jesus is our “substitute” in that Jesus took upon HIMSELF what was due us for our sin i.e., death; therefore, in response to the faithfulness of Jesus, the Father’s New Covenant promise is to remember your sins no more (Hebrews 8:12) and from the moment you acknowledge-believe-confess Jesus as your Messiah who died for you (John 3:16), when the Father sees YOU, He only sees His dear Son IN YOU…not your sin but His Son’s perfection (perfection in flesh and in divinity), forever. Jesus, who knew no sin, became the object of sin for our benefit that we might become the righteousness-perfection of God through Jesus…this a divine gift-promise of the Father that cannot be earned by humanity – a Gift that can only be acknowledged-received by faith-trust in Jesus as one’s Messiah (John 3).