Romans 8:27

and he that searcheth the hearts knoweth what is the mind of the Spirit, because he maketh intercession for the saints according to the will of God. [Though we, in our ignorance, do not know how to express these inward groanings, or yearnings, and though the Holy Spirit, in his operations within us, can not so lead or train us as to make us able to give them articulate utterance, yet God, who searcheth the heart, or that inner man where the Spirit dwells, knows what it is that the Spirit has in mind; i. e., what the Spirit is prompting us to desire, because the Spirit pleads for the saints according to the will of God, asking those things which accord with the plans, purposes and desires of God. "In short," says Beet, "our own yearnings, resulting as they do from the presence of the Spirit, are themselves a pledge of their own realization." The remainder of the chapter gives the third ground of encouragement, which is briefly this: the Christian has nothing to fear (outside of himself), for nothing can defeat the plan or purpose which God cherishes toward him, and nothing can separate him from the love of God.]