Intercession of Christ
From the Christological perspective, the intercession of Christ is distinguished from the Intercession of the Spirit. In the first case Christ takes petitions to the Father in Heaven, in the second case the Comforter (the Spirit) flows from Heaven toward the hearts of believers.
It is Christ Jesus that died, yea rather, that was raised from the dead, who is at the right hand of God, who also maketh intercession for us.
And if any man sin, we have an Advocate with the Father, Jesus Christ the righteous: and he is the propitiation for our sins; and not for ours only, but also for the whole world.
Wherefore also he is able to save to the uttermost them that draw near unto God through him, seeing he ever liveth to make intercession for them.
The intercession of Christ in Heaven is seen as a continuation of the prayers and petitions he performed for humanity while on earth, e.g. as in Luke 23:34: "Father, forgive them; for they know not what they do".
In Pauline Christology the intercession of Christ has two components, both in the present and at the Last Judgement. This is expressed in Romans 8:33-34 in terms of "Who shall lay anything to the charge of God's elect?" and "Who is he that condemneth?", and then in Hebrews 7:25 in terms of the activities of Christ as the High Priest.
In Christian teachings, the intercession of Christ before God relates to Jesus' anamnesis before God during the Last Supper and the continuing memorial nature of the Eucharistic offering. In the Christology of salvation, the one time offering of Christ via his willing sacrifice at Calvary is distinguished from, but relates to his continued intercession from Heaven in his role as the High Priest, and his role at the Last Judgement. The notion of intercession by Christ as the Lamb of God relates to the imagery of the Lamb in Revelation 14:1:5 where those who are first saved "were purchased from among men" through the sacrifice of the lamb:
These are they that follow the Lamb whithersoever he goeth. These were purchased from among men, [to be] the firstfruits unto God and unto the Lamb.
From the Christological perspective, the intercession of Christ is distinguished from the Intercession of the Spirit. While 1 John 2:1 states "We have an Advocate with the Father, Jesus Christ the righteous", John 14:16-17 includes the statement:
And I will pray the Father, and he shall give you another Comforter, that he may be with you for ever, even the Spirit of truth: whom the world cannot receive; for it beholdeth him not, neither knoweth him: ye know him; for he abideth with you, and shall be in you.
The distinction between the two forms of the advocacy can be interpreted in terms of the direction of the flow: in the first case Christ takes petitions to the Father in Heaven, in the second case the comforter (the Spirit) flows from Heaven toward the hearts of believers.
- Encyclopedia of Religion and Ethics, Part 13 by James Hastings and John A. Selbie 2003 ISBN 0-7661-3688-4 page 384 
- The International Standard Bible Encyclopedia: 4 Vol. by Geoffrey W. Bromiley 1995 ISBN 0-8028-3785-9 page 166
- Reconstructing pastoral theology: a Christological foundation by Andrew Purves 2004 ISBN 0-664-22733-3 page 122
- Talking to God: the theology of prayer by Wayne R. Spear 2002 ISBN 1-884527-13-2 page 55 
- Studies in Early Christology by Martin Hengel 2004 ISBN 0-567-04280-4 page 159
- Toward a christology of Christ the high priest by Michael Keenan Jones 2006 ISBN 88-7839-066-6 pages 57-58