One requirement to be used as a leader in a movement of revival: They must have the Spirit of God upon them.

We have seen that the Son of God created the world for this very end, to communicate Himself in an image of His own excellency. ... When we behold the light and brightness of the sun, the golden edges of an evening cloud, or the beauteous (rain)bow, we behold the adumbrations of His glory and goodness; and in the blue sky, of his mildness and gentleness.

What self-righteous persons take to themselves, is the same work that Christ was engaged in when He was in His agony and bloody sweat, and when He died on the cross, which was the greatest thing that ever the eyes of angels beheld. Christ could accomplish other parts of this work without cost; but this part cost Him His life, as well as innumerable pains and labors. Yet this is the part which self-righteous persons go about to accomplish for themselves.

True virtue never appears so lovely as when it is most oppressed; and the divine excellency of real Christianity is never exhibited with such advantage as when under the greatest trials; then it is that true faith appears much more precious than gold, and upon this account is "found to praise and honour and glory.

The way to Heaven is ascending; we must be content to travel uphill, though it be hard and tiresome, and contrary to the natural bias of our flesh.

The deceitfulness of the heart of man appears in no one thing so much as this of spiritual pride and self-righteousness. The subtlety of Satan appears in its height, in his managing persons with respect to this sin. And perhaps one reason may be that here he has most experience; he knows the way of its coming in; he is acquainted with the secret springs of it: it was his own sin. Experience gives vast advantage in leading souls, either in good or evil.

Of all the knowledge that we can ever obtain, the knowledge of God, and the knowledge of ourselves, are the most important.