By Richard Sibbes
Two things are opposite to this life of faith.
One, Despair. This cuts the pillars of hope. Against many, as Luther for one, have been tempted to despair, but yet setting on the work, have overcome. So the Israelites were afraid, upon the evil report of the spies of Canaan; but when they went on, they overcame and beat down their enemies. So we say, Oh, I will never overcome such a sin, or such a corruption, or do such a duty. This is not true, go on, look to Christ, join his strength with your endeavor, be out of love with it, resolve thoroughly, set on it strongly, and down it will go before you.
Second, is presumption; for this know, that in his own strength shall no man be strong. In St Paul’s speech. “By grace I am what I am.” (1st Corinthians 15:10). So, again, he says, “in him” to think, in Christ “we live, and move, and have our being,” (Acts 17:28). If we presume, it is just with Christ to forsake us, as he did Peter. Take heed also of spiritual self-sufficiency, or else we rest on ourselves, and do not go to Christ. Our moving to all good duty is by him. It is but a word for him to help us, either in things tending to a spiritual or a natural life. Therefore, for the summing up of all, do not leave him. In your emptiness go to his fullness. If your cistern is dry, turn the valve of your faith, and his fountain will fill again. Take him still along with you, and you cannot not choose but to live this life of faith in growing in holiness and obedience.
This is the End of Life of Faith, by Richard Sibbes ; modernized in places by this site.