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."
Robert Thieme
Thieme believed contemporary Christianity has superimposed a number of false actions on the Gospel message. Consequently, at least every Sunday, he would emphasize what did not need to be done for salvation: 
Thieme held that these actions, while some of them might be commendable from the human viewpoint, are an intrusion on faith. Faith is the absence of merit, and no human good of any form is acceptable to God for salvation. God extends the invitation to salvation, not the other way around. The Greek verb "metanoeo", translated "repent" in the Bible, when used in connection with salvation, means to change one's mind about Christ and believe in him at the point of Gospel hearing. At that point, the grace of God does everything necessary to make faith effectual for salvation. The only personal sin that results in eternal condemnation is to die without having personally believed in Jesus Christ as Savior. God solved the sin problem, and made an issue of individual volition. God knows the thoughts of every individual, and is not constrained by geographical isolation or linguistic barrier in his dissemination of the salvation message to those who desire a relationship with him. Water baptism and legitimate church activities are post-salvation functions of the believer, not prerequisites for salvation. 
Thieme categorized the Christian's life into three phases: the moment of salvation, the post-salvation life of the believer on Earth, and the believer in eternity. These distinctions allow the proper interpretation of verses pertaining to salvation (e.g. Acts 16:31, Eph. 2:8-9, Gen. 15:6), and verses pertaining to the post-salvation function of the believer (e.g. Jas. 2:17), so as not to obscure the simplicity of faith alone in Christ alone for salvation.