[Some people end up] "Trusting in their own righteousness. This is a soul-ruining mischief. When men trust in their own righteousness they do indeed reject Christ's. Beloved, you had need be watchful on every hand, for not only your sins—but your duties may undo you. It may be you never thought of this; but so it is, that a man may as certainly perish by his seeming righteousness and supposed graces—as by gross sins; and that is, when a man trusts to these as his righteousness before God, for satisfying His justice, appeasing His wrath, procuring His favor, and obtaining His pardon. This is to put Christ out of office, and make a Savior of our own duties and graces. Beware of this, O professing Christians; you are much in duties—but this one fly will spoil all the ointment. When you have done most and best, be sure to go out of yourselves—to Christ; reckon your own righteousness as filthy rags (Phil 3:9; Isa 64:6)."