Here is matter of unspeakable comfort...

[...] though the flesh say, Ego deficiam, I will fail thee; though the world say, Ego decipiem, I will deceive thee; though the devil say, Ego eripiam, I will snatch thee away; yet as long as Christ saith, I will never leave thee, nor forsake thee, thy graces are secure in the midst of all these enemies.

[...] Desponding, trembling soul! lift up thine eyes and look upon the fields; the corn lives still and grows up, though birds have watched to devour it; snows have covered it, beasts have cropped it, weeds have almost [choked] it, yet it is preserved. And hath not God more care of that precious seed of his own spirit in thee, than any husbandman hath in his corn? Hath he not said, "That having begun the good work in thee, he will perfect it to the day of Christ?" Hath he not said, "I give unto them eternal life, and they shall never perish." [...] Well then, be not discouraged, for thou dost not run as one uncertain, nor fight as one that beats the air. But "the foundation of God stands sure, having this seal--the Lord knows who are his." Though thy grace be weak, thy God is strong; though the stream seem sometimes to fail, yet it is fed by an overflowing fountain.

~Husbandry Spiritualized: Or the Heavenly Use of Earthly Things, by John Flavel (Chapter 13, "Upon the dangers incident to the corn from seedtime to harvest")