But is it not said in Scripture, and do we not feel it, dear brethren, that it is the Holy Ghost who regenerates the soul? It is the Holy Ghost who quickens us. “You hath he quickened who were dead in trespasses and sins.” It is the Holy Spirit who imparts the first germ of life, convincing us of sin, of righteousness, and of judgment to come. And is it not the Holy Spirit, who, after that flame is kindled, still fans it with the breath of his mouth and keeps it alive? Its author is its preserver. Oh! can it be said that it is the Holy Ghost who strives in men’s souls; that it is the Holy Ghost who brings them into the sweet place that is called Calvary—can it be said that he does all these things, and yet is not a person? It may be said, but it must be said by fools; for he never can be a wise man who can consider these things can be done by any other than a glorious person—a divine existence.
From the Metropolitan Tabernacle Pulpit, Volume 1, Sermon 4 by Charles Haddon Spurgeon