On the two natures in the Person of Christ, "Here must the whole church fall down and worship the Author of this wonderful contrivance; and, captivating their understandings unto the obedience of faith, humbly adore what they cannot comprehend." - John Owen, "The Glory of Christ," in Works, 1:311

The person who understands the evil in his own heart is the only person who is useful. ~ John Owen

He who prays as he ought will endeavor to live as he prays. This none can do who doth not with diligence keep his heart unto the things he hath prayed about. To pray earnestly and live carelessly is to proclaim that a man is not spiritually minded in his prayer. John Owen

Moreover, be not contented to have right notions of the love of Christ in your minds, unless you can attain a gracious taste of it in your hearts; no more than you would be to see a feast or banquet richly prepared, and partake of nothing of it unto your refreshment. It is of that nature that we may have a spiritual sensation of it in our minds; whence it is compared by the spouse to apples and flagons of wine. We may taste that the Lord is gracious; and if we find not a relish of it in our hearts, we... shall not long retain the notion of it in our minds. Christ is the meat, the bread, the food of our souls. Nothing is in him of a higher spiritual nourishment than his love, which we should always desire." - John Owen