Augustine of Hippo

„

(Serm. in Mont. 1.22.) Otherwise, The Apostle John says, There is a sin unto death; I do not say that he shall pray for it. This sin of the brother unto death I judge to be, when any one having come to the knowledge of God, through the grace of our Lord Jesus Christ, opposes Himself against the brotherhood, or is roused by the fury of jealousy against that grace by which he was reconciled to God. (1 John 5:16) The stain of this sin is so great, that it may not submit to the humility of prayer, even when the sinful conscience is driven to acknowledge and proclaim its own sin. Which state of mind because of the greatness of their sin we must suppose some may be brought to; and this perhaps may be to sin against the Holy Ghost, that is through malice and jealousy to assail brotherly charity after having received the grace of the Holy Spirit; and this sin the Lord declares shall be forgiven neither in this world, nor in that to come. Whence it may be enquired whether the Jews sinned this sin against the Holy Ghost when they saidthat the Lord cast out dæmons by Beelzebub the Prince of the dæmons. Are we to suppose this spoken of our Lord Himself, because He said in another place, If they have called the master of the house Beelzebub, how much more they of his household? (Mat. 10:24) Seeing they thus spoke out of jealousy, ungrateful for so great present benefits, are they, though not Christians, to be supposed by the very greatness of that jealousy to have sinned the sin against the Holy Spirit? This cannot be gathered from the Lord’s words. Yet He may seem to have warned them that they should come to grace, and that after that grace received they should not sin as they now sinned. For now their evil word had been spoken against the Son of Man, but it might be forgiven them, if they should be converted, and believe on Him. But if after they had received the Holy Spirit, they should be jealous against the brotherhood, and should fight against that grace which they had received, it should not be forgiven them neither in this world, nor in the world to come. For if He had there condemned them in such sort that no hope remained for them, He would not have added au admonition, Either make the tree good, &c.