Some are loath to perform good duties, because they feel their hearts rebelling, and duties come off untowardly. We should not avoid good actions for the infirmities cleaving unto them. Christ looketh more at the good in them that he meaneth to cherish, than the ill in them that he meaneth to abolish. A sick man, though in eating he something increaseth the disease, yet he will eat, that nature may get strength against the disease; so though sin cleaveth to what we do, yet let us do it, since we have to deal with so good a Lord, and the more strife we meet withal, the more acceptance. Christ loveth to taste of the good fruits that come from us, although they will always relish of the old stock.  – Richard Sibbes, The Bruised Reed