Apostol § 98

Brethren, we know that the whole creation groans and [travails in labor] together until now. And not only the creation, but also we, who have the firstfruits of the Spirit, even we ourselves groan within ourselves, eagerly waiting for the adoption, the redemption of our bodies. For we are saved by hope, but hope that is seen is not hope; for why does one still hope for what he sees? But if we hope for what we do not see, then we eagerly wait for it with patience. Likewise the Spirit also helps in our infirmities. For we do not know what we should pray for as we ought, but the Spirit Himself makes intercession for us with groanings which cannot be uttered. And He that searches the hearts knows what the mind of the Spirit is, because He makes intercession for the saints according to the will of God.