Charles H. Spurgeon on Psalms 19:13

"Presumptuous sins." When sin grows up from act to delight, from delight to new acts, from repetition of sinful acts to vicious indulgence, to habit and custom and a second nature, so that anything that toucheth upon it is grievous, and strikes to the man's heart; when it is got into God's place, and requires to be loved with the whole strength, makes grace strike sail, and other vices do it homage, demands all his concerns to be sacrificed to it and to be served with his reputation, his fortunes, his parts, his body, and soul, to the irreparable loss of his time and eternity both —this is the height of its dominion —then sin becomes "exceedingly sinful," and must needs make strange and sad alterations in the state of saints themselves, and be great hindrances to them in their way to Heaven, having brought them so near to Hell. —Adam Littleton.