or ultimate sin is the sin that will not be forgiven by God.

“[So in all reality without God, you can't be forgiven by God.]”

Several passages in the New Testament are frequently interpreted as referring to the unforgivable sin:

so like the Antichrist just means without Christ everybody that does not have Christ is against Christ

Matthew 12:30-32:[11] "Whoever is not with me is against me, and whoever does not gather with me scatters. Therefore I tell you, people will be forgiven for every sin and blasphemy, but the blasphemy against the Spirit will not be forgiven. Whoever speaks a word against the Son of Man will be forgiven, but whoever speaks against the Holy Spirit will not be forgiven, either in this age or in the age to come."[7]

Mark 3:28–30:[12] "Truly I tell you, people will be forgiven for their sins and whatever blasphemies they utter; but whoever blasphemes against the Holy Spirit can never have forgiveness, but is guilty of an eternal sin—for they had said, "He has an unclean spirit.""[7]

Luke 12:8–10:[13] "And I tell you, everyone who acknowledges me before others, the Son of Man also will acknowledge before the angels of God; but whoever denies me before others will be denied before the angels of God. And everyone who speaks a word against the Son of Man will be forgiven, but whoever blasphemes against the Holy Spirit will not be forgiven."

Hebrews 6:4–6:[14] "For it is impossible to restore again to repentance those who have once been enlightened, and have tasted the heavenly gift, and have shared in the Holy Spirit, and have tasted the goodness of the word of God and the powers of the age to come, and then have fallen away, since on their own they are crucifying again the Son of God and are holding him up to contempt."[7]

Hebrews 10:26–31:[15] "For if we willfully persist in sin after having received the knowledge of the truth, there no longer remains a sacrifice for sins, but a fearful prospect of judgment, and a fury of fire that will consume the adversaries. Anyone who has violated the law of Moses dies without mercy "on the testimony of two or three witnesses." How much worse punishment do you think will be deserved by those who have spurned the Son of God, profaned the blood of the covenant by which they were sanctified, and outraged the Spirit of grace? For we know the one who said, "Vengeance is mine, I will repay." And again, "The Lord will judge his people." It is a fearful thing to fall into the hands of the living God."[7]

1 John 5:16:[16] "If any man sees his brother sin a sin which is not unto death, he shall ask, and he shall give him life for them that sin not unto death. There is a sin unto death: I do not say that he shall pray for it."[7]

In Christian hamartiology, eternal sin, the unforgivable sin, unpardonable sin, or ultimate sin is the sin that will not be forgiven by God. One eternal or unforgivable sin (blasphemy against the Holy Spirit), also known as the sin unto death, is specified in several passages of the Synoptic Gospels, including Mark 3:28–29,[1] Matthew 12:31–32,[2] and Luke 12:10,[3] as well as other New Testament passages including Hebrews 6:4–6,[4] Hebrews 10:26–31,[5] and 1 John 5:16.[6][7][8]

The unforgivable sin is interpreted by Christian theologians in various ways, although they generally agree that one who has committed the sin is no longer able to repent,

“[that would be like trying to hit a home run without a bat or a ball ]”

and so one who is fearful that one has committed it has not done so.”[like just now 98% of the people who just read that asked themselves the question lord I hope I haven't done that, that's a sign that your conscience/{THE SPIRIT} is impressing or working on and in your heart enough that you would wanna check yourself to make sure that you're still in line.

The thing is even if you have done this by turning around and confessing it and apologizing for it you accept Jesus back into your life which makes it possible again for him to save you].

Acts 2

16 but this is that which was spoken by the prophet Joel:

17 ‘And it shall come to pass in the last days, saith God, I will pour out My Spirit upon all flesh; and your sons and your daughters shall prophesy, and your young men shall see visions, and your old men shall dream dreams.

18 And on My servants and on My handmaidens I will pour out in those days My Spirit, and they shall prophesy.

19 And I will show wonders in heaven above, and signs in the earth beneath — blood and fire and vapor of smoke.

20 The sun shall be turned into darkness, and the moon into blood before that great and notable Day of the Lord comes.

21 And it shall come to pass that whosoever shall call on the name of the Lord shall be saved.’

Acts 2

37 Now when they heard this, they were pricked in their heart, and said unto Peter and to the rest of the apostles, “Men and brethren, what shall we do?”

38 Then Peter said unto them, “Repent and be baptized, every one of you, in the name of Jesus Christ for the remission of sins; and ye shall receive the gift of the Holy Ghost.

39 For the promise is unto you, and to your children, and to all who are afar off, even as many as the Lord our God shall call.”

How Is JESUS CHRIST

Jesus also referred to as Jesus Christ or Jesus of Nazareth was a first-century Jewish preacher and religious leader; he is the central figure of Christianity, the world's largest religion. Most Christians believe he is the incarnation of God the Son and the awaited Messiah (the Christ) prophesied in the Hebrew Bible.

Christ means anointed, according to Easton's Bible Dictionary. Anointed is the Greek word for the Hebrew "Messiah," which is Jesus' official title. In the New Testament, this title is linked with Jesus 514 times. Here are a few examples: Acts 17:3, Acts 18:5, and Matthew 16:15-16.

Virtually all modern scholars of antiquity agree that Jesus existed historically. Research into the historical Jesus has yielded some uncertainty on the historical reliability of the Gospels and on how closely the Jesus portrayed in the New Testament reflects the historical Jesus, as the only detailed records of Jesus' life are contained in the Gospels. Jesus was a Galilean Jew who was circumcised, was baptized by John the Baptist, began his own ministry, and was often referred to as "rabbi". Jesus debated with fellow Jews on how to best follow God, engaged in healing, taught in parables, and gathered followers. He was arrested and tried by the Jewish authorities, turned over to the Roman government, and crucified on the order of Pontius Pilate, the Roman prefect of Jerusalem. After his death, his followers believed he rose from the dead, and the community they formed eventually became the early Christian Church. Accounts of his teachings and life were initially conserved by oral transmission, which was the source of the written Gospels.

Christian theology includes the beliefs that Jesus was conceived by the Holy Spirit, was born of a virgin named Mary, performed miracles, founded the Christian Church, died by crucifixion as a sacrifice to achieve atonement for sin, rose from the dead, and ascended into Heaven, from where he will return. Commonly Christians believe Jesus enables people to be reconciled to God. The Nicene Creed asserts that Jesus will judge the living and the dead, either before or after their bodily resurrection, an event tied to the Second Coming of Jesus in Christian eschatology. The great majority of Christians worship Jesus as the incarnation of God the Son, the second of three persons of the Trinity; there is a small minority of Christian denominations that reject trinitarianism, wholly or partly, as non-scriptural. The birth of Jesus is celebrated annually on 25 December as Christmas. His crucifixion is honored on Good Friday and his resurrection on Easter Sunday. The world's most widely used calendar era—in which the current year is AD 2023 (or 2023 CE)—is based on the approximate birthdate of Jesus.

Jesus is also revered in other religions. In Islam, Jesus (often referred to by his Quranic name ʿĪsā) is considered the penultimate prophet of God and the Messiah, who will return before the Day of Judgement. Muslims believe Jesus was born of the virgin Mary (another figure revered in Islam) but was neither God nor a son of God; the Quran states that Jesus never claimed to be divine. Most Muslims do not believe that he was killed or crucified but that God raised him into Heaven while he was still alive. In contrast, Judaism rejects the belief that Jesus was the awaited messiah, arguing that he did not fulfill messianic prophecies, and was neither divine nor resurrected.

This is a perfect example of unforgivable sin because these Jewish people denied Jesus's authority on this matter they are not able to be forgiven by him.