“When God designed the great and glorious work of recovering fallen man and the saving of sinners, to the praise of the glory of His grace, He appointed, in His infinite wisdom, two great means thereof.
The one was the giving of His Son for them, and the other was the giving of His Spirit unto them. And hereby was way made for the manifestation of the glory of the whole blessed Trinity, which is the utmost end of all the works of God.
Hereby were the love, grace, and wisdom of the Father, in the design and projection of the whole; the love, grace, and condescension of the Son, in the execution, purchase, and procurement of grace and salvation for sinners; with the love, grace, and power of the Holy Spirit, in the effectual application of all unto the souls of men, — made gloriously conspicuous.”
–John Owen, “Pneumatologia,” in The Works of John Owen, ed. William Goold, 24 vols. (Edinburgh: Johnson & Hunter; 1850-1855; reprint by Banner of Truth, 1965), 3:27.