Christ, and the testimony of the Spirit in our consciences, bearing witness to our spirits, is an assured testimony of this, that Jesus Christ, in whom we believe, is “the Only Begotten of the Father, full of grace and truth.” The changing, pacifying, and comforting of souls in such a wonderful manner, cries aloud that he in whom the soul believes is the true and living God, whom to know is eternal life. But mark, I pray you, the accuracy of the apostle in the change of speech. “These three” witnesses on earth, saith he, “agree in one, in giving one common testimony to the Son of God and the Saviour of sinners.” But as for the heavenly witnesses—the Father, the Word and the Holy Ghost,—however they be three after an inconceivable manner, and that they do also agree in one common testimony to the Mediator of men, yet moreover they are One. They not only agree in one but are one God,—one simple, undivided, self-being, infinite Spirit,—holden out to us in three persons, the Father, Son, and Holy Ghost, to whom be praise and glory. Lecture XIII. Of The Unity Of The Godhead And The Trinity Of Persons Deut. vi. 4.—“Hear, O Israel The Lord our God is one Lord.”—1 John v. 7 “There are three that bear record in heaven the Father, the Word, and the Holy Ghost and these three are one.” “All Scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness,” 2 Tim. iii. 16. There is no refuse in it, no simple and plain history, but it tends to some edification, no profound or deep mystery, but it is profitable for salvation. Whatsoever secrets there be in the mysteries of God which are reserved from us, though it be given us but to “know in part,” and “darkly through a vail,” yet as much is given to us to know as may make the man of God perfect in every good work. As much is given us to know as may build us up to eternal salvation. If there were no more use of these deep mysteries of the holy Trinity, &c. but to silence all flesh, and restrain the unlimited spirits of men, and keep them within the bounds of sobriety and faith, it were enough. That great secret would teach as much by its silence and darkness, as the plainer truths do by speaking out clearly. O that this great mystery did compose our hearts to some reverend and awful apprehension of that God we have to do with, and did imprint in our soul a more feeling sense of our darkness and ignorance. This were more advantage then all the gain of light, or increase of knowledge that can come from the search of curiosity. If men would labour to walk in that light they have attained, rather than curiously inquire after what they cannot know by inquiry, they should sooner attain more true light. If men would set about the practice of what they know, without doubt they would more readily come to a resolution and clearness in doubtful things.