Eternal sin
However, the Church further believes there is no offence, however serious, that cannot be taken away by Baptism, or absolved from in the Confessional—that no one, however wicked and guilty, may not confidently hope for forgiveness. The Catechism says that Christ desires "the gates of forgiveness should always be open to anyone who turns away from sin." As did St Augustine, the Catholic Church today teaches that only dying unrepentant for one's sins is the only unforgivable sin. Indeed, in "Dominum et vivificantem" Pope John Paul II writes "According to such an exegesis, 'blasphemy' does not properly consist in offending against the Holy Spirit in words; it consists rather in the refusal to accept the salvation which God offers to man through the Holy Spirit, working through the power of the Cross", and "If Jesus says that blasphemy against the Holy Spirit cannot be forgiven either in this life or in the next, it is because this "non-forgiveness" is linked, as to its cause, to "non-repentance," in other words to the radical refusal to be converted. This means the refusal to come to the sources of Redemption, which nevertheless remain "always" open in the economy of salvation in which the mission of the Holy Spirit is accomplished."
Mark 3
Jesus also makes the claim that "all sins" can be forgiven, except for an eternal sin, such as blasphemy against the Holy Spirit (). Mark inserts his own explanation as to why Jesus said this, stating "He said this because they were saying, "He has an evil spirit." (), thus Jesus according to Mark is saying that accusing him of using Satan for his power is in effect calling the work of God evil and failing to see the work of God in Jesus' actions. The parallels in and and the Gospel of Thomas 44 call this the unforgivable sin. Unforgivable sins are also listed in Hebrews and as well as 1 John . There is also a possible link with 1 Corinthians . 
His first answer to the charge, that a "house divided" cannot stand, has become a common piece of wisdom, the most famous modern example is Lincoln's use of this phrase during the 1858 senatorial election campaign against Stephen Douglas. Lincoln used the metaphor of a "house divided" to describe the situation of the United States on the eve of the Civil War.