Saint Paul the Apostle teaches in his Epistle to the Galatians that those who do uncleanness... shall not obtain the kingdom of God (5.19,21). Of Old, the unclean man refers to every leper, and whosoever hath an issue of seed [semen], or is defiled by the dead (Num. 5.2). They were excluded from the camp of the Hebrews - in the midst of which was the presence of God through the Ark of the Covenant, a figure fulfilled by the tabernacle placed at the middle of our traditionally exalted Catholic altar. Therefore, in the New Dispensation by the Giver of Life, those from whom the seed of copulation goeth out (Lev. 15.16) into his wife are not condemned unless they hinder ["contraception"] the natural end of issuing semen - that is, the bringing forth of children - and waste the seed of life (cf., Gen. 38.9-10); also not condemned are those who hath an issue of seed out of nocturnal phantasm (cf., Deut. 23.10) unless upon being awakened they fully consented to its concomitant sexual pleasure.
Apocalypse XIV now unfolding (cf., our posts "The Wine of the Wrath of God" and "After Pope Benedict XVI, the 'Last' Roman Pontiff?"). The divine chastisement of world-wide conflagration (Lk. 17.29-30, cf., our post "Our Lady, Vatican II Disorientation, and the Annihilation of Many Nations") to annihilate the 'super-power' and cities and nations drunk with the wine of its immodesty, impurity, fornication, homosexuality, and blasphemies (Apoc. 14.8) is imminent - the close of our end-times period (distinct from the consummation of the world, Mt. 28.20).
They... have made them white in the Blood of the Lamb(Apoc. 7.14) ... All things... are cleansed with Blood: and without shedding of Blood there is no remission(Heb. 9.22).
The Blood of the [Divine] Lamb can be availed of in the traditional Rite of the Sacrament of Penance (cf., our post "On Concealing Sins in Confession") and of the Sacrament of the Holy Eucharist (the Traditional Latin Mass). Go to our traditional Catholic Mass Centers (links on the left-side bar of this site). Flee to the mountains... (Mt. 24.16).
See also the Messages and Appeals (on the upper right-side bar) of the Apocalyptic Woman in her title of Our Lady of Fatima.