1. God tells them, in general (v. 12), "I know your manifold transgressions, and your mighty sins; and you shall be made to know them too." In our penitent reflections upon our sins we must consider, as God does in his judicial remarks upon them, and will do in the great day, (1.) That they are very numerous; they are our manifold transgressions, sins of various kinds and often repeated. Oh what a multitude of vain and vile thoughts lodge within us! What a multitude of idle, foolish, wicked words have been spoken by us! In what a multitude of instances have we gratified and indulged our corrupt appetites and passions! And how many our own omissions of duty and in duty! Who can understand his errors? Who can tell how often he offends? God knows how many, just how many, our transgressions are; none of them pass him unobserved; we know that they are to us innumerable; more than the hairs of our head; and we have reason to see what danger we have brought ourselves into, and what abundance of work we have made for repentance, by our manifold transgressions, by the numberless number of our sins of daily incursion. (2.) That some of them are very heinous; they are our mighty sins; sins that are more exceedingly sinful in their own nature and by being committed presumptuously and with a high hand, sins against the light of nature, flagrant crimes, that are mighty to overpower your convictions and to pull down judgments upon you.