How long might a man sit at the foot of a philosopher, before he should find such a commanding power go forth with his lectures of morality, [as] to take away his old heart, full of lusts as the sea is of creeping things innumerable, and put a new and holy one in the room of it? Some indeed in their school have been a little refined from the dregs of sensuality, as Polemo, who went a drunkard to hear Plato, and returned a temperate man from his lecture; and no wonder, if we consider what violence such broad and beastly sins offer to the very light of a natural conscience—that lesser light appointed by God to rule the night of the heathen world. But take the best philosopher of them all, and you shall find sins that are of a little finer spinning—such as spiritual wickednesses and heart sins are—that are acted behind the curtain in the retiring room of the inner man. These were so far from being the spoils of their victorious arms, that they could never come to the sight of them. But ‘the word’ treads on these ‘high places’ of spiritual wickednesses, and leaves not any stronghold of them untaken. It pursues sin and Satan to their bogs and fastnesses; it digs the sinner’s lusts like vermin out of their holes and burrows, where they earth themselves. The heart itself is no safe sanctuary for sin to sit in. The word will take it thence—as Joab from the horns of the altar—to slay it. Those corruptions that escaped the sword of the moralist and honest heathen, even these fall by the edge of the word.
I cannot give a better instance of the converting power of the word, than by presenting you with the miraculous victories obtained by it over the hearts of men, when the apostles were sent out first to preach, the grace of Christ, and, as it were, to begin the com¬bination of the gospel ministry. Wherever they came, they found the world up in arms against them, and the black prince of it, the devil, at the head of their troops, to make their utmost resistance against them; yet what unheard of victories were got by them? Was it not strange that without drawing any other sword than ‘the everlasting gospel,’ they should turn the world upside down, as their enemies themselves con¬fessed?—slighting the devil’s works, casting down his holds wherever they came, and overcoming those bar¬barous heathens whom the devil had held in his peaceable possession so many thousand years! To [make them] renounce their idolatries in which they had been bred and trained up all their days; receive a new Lord, and him a crucified Jesus; and this at the report of a few silly men, loaden with the vilest re-proaches that the wit of man could invent, or malice rake together, to besmear their persons, and render their doctrine they preached odious to the world, this, I say, is such an unheard of conquest, as could not be obtained by any less than the arm of the Almighty —especially if we cast in two or three circumstances to give a further accent to the heightening of this consideration. As,
First Circumstance. The meanness of the per¬sons employed to preach this doctrine. They were mean in their condition and rank, being of the floor and lowest of the people, and many of them as mean in their intellectual accomplishments as external port and garb in the world, having no help from human learning to raise their parts, and set a varnish upon their discourses. Men very unfit for such an enter¬prise, God knows, had the stress and success of their works depend on their own furniture. This put their very enemies to a stand, whence they had their wisdom, knowing well how low their parentage and unsuitable their breeding were to give them any advantage toward such a high undertaking, Acts 4:13. Surely these poor men could contribute no more, by anything that was their own, to that wonderful success which followed their labours, than the blowing of the rams' horns could to the laying of Jericho’s walls flat with the ground, or the sounding of Jehoshaphat’s musical instruments to the routing of so formidable an army of his enemies; so that we must attribute it to the breath of God, by which they sounded the trum¬pet of the gospel, and his sweet Spirit charming the hearts of his hearers, that such mighty works were done by them.