It should seem that amidst the deadly poison infused into our nature by the great enemy of souls, this of unbelief was his master-piece, of contrivance. And to say the truth, it is of all others, the most diabolical and ruinous. For it denies the sovereignty of divine mercy: it sets at nought, the infinite merit and value of Christ's blood and righteousness. It is said concerning the Lord Jesus in the days of his flesh, "that he did not many mighty works there, because of their unbelief." (Matthew 13:58) Yea, the Lord declares the sin of unbelief to be unpardonable: "He that believeth not shall be damned." (Mark 16:16) And his servant, the beloved apostle, confirms the awful account, when in the close of the canon of Scripture, he saith that "the fearful and unbelieving shall have their part in the lake which burneth with fire and brimstone; which is the second death." (Revelation 21:8) How solemnly the apostle to the Hebrews sums up the history of those whose carcases fell in the wilderness, when he saith, "So we see that they could not enter in because of unbelief." (Hebrews 3:19)