Is there a group of Christians that believes that Jesus was resurrected metaphorically rather than physically?

The rule is "no", but like every rule there are exceptions. So "yes".

It should be stressed that such views are not mainstream, majority or orthodox in any way. However there are groups that claim to be Christian and hold to a metaphorical view of Christ's resurrection. Likewise, there are groups who claim to be Christian but don't even believe that Christ existed or believe that he wasn't the Christ (God incarnate) or all sorts of other claims. Again, these are not representative of Christian theology but they do exist in the sphere of people who claim to be Christian.

The most obvious early example would be the Gnostics. Wile Gnosticism pre-dated Christianity, it was syncratistic and embraced pieces of other belief systems. It was not uncommon for Gnostic groups after the first century to claim to be Christian while dening the physical resurrection¹ and other core Christian beliefs.

For the Gnostic any resurrection of the dead was excluded from the outset; the flesh or the substance is destined to perish. 'There is no resurrection of the flesh, but only of the soul', say the so-called Archonites, a late Gnostic group in Palestine. -- Kurt Rudolph²

In fact, most Christian creedal statements starting very early on specifically include a note about the resurrection specifically to counter Gnostic and other belief systems that denied this:

[...] He suffered and was buried; and the third day He rose again, [...] -- The Nicene Creed

In modern times, similar views enjoy wide circulation, esp on the internet among all sorts of backgrounds including those with more modern culture than historic knowledge, heterodox Christians, new-age movements, and even atheists. However popular, the view tends to be vague having no concrete name or identifiable following. The concept of a metaphorical resurrection and ongoing appreciation for a long dead good-moral-teacher* are rather assimilated into some other world view and the whole thing is stamped as "Christian" in the sense that it incorporates some terminology and history from Christianity without subscribing to its primary doctrines.

The most obvious exception to this modern trend is the Jehovah Witnesses -- a well established sect with organized concrete beliefs that include a metaphorical view of Christ's resurrection. Their belief about the atonement of Christ requires that he stay physically dead: otherwise the work he accomplished in death would be un-done. While orthodox Christian belief has Christ being physically raised from the dead by the power of the Spirit, JW belief says that he was raised as a Spirit while his body stayed in the grave.

One other major group that bears mentioning because they make their stand on Christ's resurrection being metaphorical would be Baha'i Faith. They do not pretend to be Christian but do co-opt quite a lot of terminology and claim to have the proper interpretation/context³ that makes sense out of some other Christian beliefs. If you want an article showing where they are coming from, try How to understand the inner (batin) and outer (zahir) meanings of the Resurrection of Christ in order to successfully prospect and teach Evangelical Christians and other Bible-believers the Baha'i Faith.

Once you finish with that chaff, go back to Scripture and have a look at some solid ground. Here is Peter's (eyewitness) testimony:

Acts 2:29-32 (ESV)
²⁹  “Brothers, I may say to you with confidence about the patriarch David that he both died and was buried, and his tomb is with us to this day. ³⁰  Being therefore a prophet, and knowing that God had sworn with an oath to him that he would set one of his descendants on his throne, ³¹  he foresaw and spoke about the resurrection of the Christ, that he was not abandoned to Hades, nor did his flesh see corruption. ³²  This Jesus God raised up, and of that we all are witnesses.

1. Check out The Treatise on the Resurrection for an early source describing Gnostic beliefs on teh resurrection. It's confusing because he claims that resurrection is not an illusion but real, but you need to understand that in context with Gnostic belief that the physical world is just at illusion that we must escape to enter the real. The article draws a one to one parallel between Jesus resurrection and ours, this resurrection being an escape from the physical into a different reality.

2. Gnosis (San Francisco: Harper & Row, 1985), p. 190.

3. http://bahai-library.com/uhj_resurrection_bible

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