John Newton's Letters
The heavenly gardener
    
    July 22, 1777.
    My dear Sir, 
    The complaints you make of what passes within, encourage me under what I 
    feel myself. Indeed, if those, who, I have reason to believe, are more 
    spiritual and humble than I am, did not give some testimony that they find 
    their hearts made of the same materials as mine is, I should be sometimes 
    hard put to it to believe that I have any part or lot in the matter, or any 
    real knowledge of the life of faith! But this concurrent testimony of many 
    witnesses, confirms me, in what I think the Scripture plainly teaches—that 
    the soil of human nature, though many spots are certainly better 
    weeded, planted, and fertilized than others—is everywhere the 
    same—universally bad! The heart is so bad, that it cannot be worse—and of 
    itself is only capable of producing noxious weeds, and nourishing venomous 
    creatures!
    We know that culture, skill, and expense will make a 
    garden—where all was desert before. When Jesus, the heavenly gardener, 
    encloses a soil, and separates it from the wasteland of the world, to make 
    it a residence for Himself—a change presently takes place; it is planted and 
    watered from above, and visited with beams infinitely more nourishing and 
    fertilizing than those of the material sun.
    But its natural propensity to bring forth weeds still 
    continues, and one half of God's dealings with us, may be compared to a 
    company of weeders, whom He sends forth into His garden—to pluck up all 
    which He has not planted with His own hand; and which, if left to grow, 
    would quickly overpower and over top the rest!
    But, alas! the ground is so impregnated with evil seeds, 
    and they shoot in such quick succession, that if this weeding work were not 
    constantly repeated, all former labor would be lost! Hence arises the 
    necessity of daily crosses and disappointments, and such multiplied 
    convictions that we are nothing, and can do nothing, of ourselves! All these 
    trials are needful, and barely sufficient, to prevent our hearts from being 
    overrun with pride, lust, worldliness and self-dependence.