There is another Intercessor, and in Him we see the agony of this ministry; for He, the Holy Spirit, “maketh intercession for us with groanings which cannot be uttered.” This One, the only present Intercessor on earth, has no hearts upon which He can lay His burdens, and no bodies through which He can suffer and work, except the hearts and bodies of those who are His dwelling place. Through them He does His intercessory work on earth, and they become intercessors by reason of the Intercessor within them. It is real life to which He calls them, the very kind of life, in lesser measure, which the Savior Himself lived on earth.
Rees Howells Intercessor by Norman Grubb