Eternal sin
In Christian hamartiology, eternal sins, unforgivable sins, or unpardonable sins are sins which will not be forgiven by God. One eternal or unforgivable sin (blasphemy against the Holy Spirit) is specified in several passages of the Synoptic Gospels, including , , and .
Guilt (emotion)
Guilt in the Christian Bible is not merely an emotional state but is a legal state of deserving punishment. The Hebrew Bible does not have a unique word for guilt, but uses a single word to signify: "sin, the guilt of it, the punishment due unto it, and a sacrifice for it." The Greek New Testament uses a word for guilt that means "standing exposed to judgment for sin" (e. g., Romans 3:19). In what Christians call the "Old Testament", Christians believe the Bible teaches that, through sacrifice, one's sins can be forgiven (Judaism categorically rejects this idea, holding that forgiveness of sin is exclusively through repentance, and the role of sacrifices was for atonement of sins committed by accident or ignorance ). The New Testament says that this forgiveness is given as written in 1 Corinthians 15:3–4: "3 For what I received I passed on to you as of first importance: that Christ died for our sins according to the Scriptures, for that he was buried, that he was raised on the third day according to the Scriptures." Some believe that the Old and New Testaments have differing opinions on the expiation of guilt because the Old Testaments were subject to the Age of Law and the New Testaments replace the Age of Law with the now current Age of Grace. However, both in the Old Testament and the New Testament salvation was granted based on God's grace and forgiveness (Gen 6:8; 19:19; Exo 33:12–17; 34:6–7). Animal sacrifices were only a symbol of the future sacrifice of Jesus Christ (Heb 10:1–4; 9–12). The whole world is guilty before God for abandoning him and his ways (Rom 3:19). In Jesus Christ, God took upon himself the sins of the world and died on the cross to pay our debt (Rom 6:23). Those who repent and accept the sacrifice of Jesus Christ for their sins, will be redeemed by God and thus not guilty before him. They will be granted eternal life which will take effect when Jesus comes the second time (1 Thess 4:13–18). In contrast to surrounding nations which addressed their guilt with human sacrifice, the Israeli authors of the Bible called that an abomination (1 Kings 11:7, Jer 32:35). The Bible agrees with pagan cultures that guilt creates a cost that someone must pay (Heb 9:22). (This assumption was expressed in the previous section, "Defences": "Guilty people punish themselves if they have no opportunity to compensate the transgression that caused them to feel guilty. It was found that self-punishment did not occur if people had an opportunity to compensate the victim of their transgression.") But unlike pagan deities who demanded it be paid by humans, God, according to the Bible, loved us enough to pay it Himself, as a good father would, while calling us His "children" and calling Himself our "father" (Mat 5:45).