This should carry us through our duties with much cheerfulness, that, if we hate our corruptions and strive against them, they shall not be counted ours. ‘It is no more I that do it,’ says Paul, ‘but sin that dwelleth in me’ (Rom. 7:17). For what displeases us shall never hurt us, and we shall be esteemed by God to be what we love and desire and labour to be. What we desire to be we shall be, and what we desire truly to conquer we shall conquer, for God will fulfil the desire of them that fear him (Ps. 145:19). The desire is an earnest of the thing desired.
Richard Sibbes, The Bruised Reed.