Eternal sin
Thomas Aquinas lists, or has responded to, six sins that supposedly go against the Holy Spirit:
Thomas Aquinas explains that the unforgivability of blasphemy against the Holy Spirit means that it removes the entrance to these means of salvation; however, it cannot hinder God in taking away this obstacle by way of a miracle.
List of Christian denominational positions on homosexuality
Most churches that are within the Pentecostal Movement view homosexual behavior as a sin. The second largest Pentecostal Church in the USA, the Assemblies of God, makes its view clear on homosexuality in a position paper stating: "It should be noted at the outset that there is absolutely no affirmation of homosexual behavior found anywhere in Scripture. Rather, the consistent sexual ideal is chastity for those outside a monogamous heterosexual marriage and fidelity for those inside such a marriage. There is also abundant evidence that homosexual behavior, along with illicit heterosexual behavior, is immoral and comes under the judgment of God."