On a general point Peter C Hodgson in “The Son of Man and the Problem of Historical Knowledge” in
The Journal of Religion (Apr 1961
http://www.jstor.org/stable/1199616?seq ... b_contents) states “the ‘Earthy Son of Man Sayings’ seem peculiarly Q, and the sayings concerning suffering are almost exclusively Markan, while the apocalyptic sayings are scattered throughout all the strata” (p. 92). (He does accept that Mk 2:10 and 2:28 are similar to the Q usage.)
Hodgson present’s Knox’s conclusion, “on the one hand, Jesus could not have referred
to himself as either the exalted, the earthly or the suffering Son of Man. On the other hand, the extensive Synoptic testimony to the fact that Jesus actually did speak about the Son of Man leads to the ‘strong presumption’ (in Knox’s words) ‘that Jesus was actually remembered to have used the phrase’ on
some occasions and in
some serious and impressive sense” (p. 95).
It seems to me that it is possible to make a case that each the three types of son of man sayings were created by early Christians. I think it has been argued that once Jesus has been equated with the coming son of man, those sayings where Jesus as a prophet claims authority can be turned into son of man sayings. I think Todt believes these sayings were created early, which I assume is why they ended up mostly in Q. I think Todt then links the state of a homeless Jesus as being a reason for him then to be seen as suffering and hence the suffering son of man. I think it is possible to conclude that Mark has developed the concept of the suffering son of man, which I don’t think is present in Q.
It seems to me to be difficult to provide strong cases why a particular eschatological son of man saying was said by Jesus rather than created by early Christians. It seems all we can do is provide the best case for those sayings where Jesus and the son of man are spoken of as separate beings and then look at the other eschatological son of man sayings in the light of that usage and if it conforms to the idea that the son of man and Jesus are separate beings then that particular saying could have been spoken by Jesus.
Luke 17:24, 37,
For as the lightning flashes and lights up the sky from one side to the other, so will the Son of man be in his day.
And they said to him, "Where, Lord?" He said to them, "Where the body is, there the vultures will be gathered together."
Matthew 24:27-28, 37-38
For as the lightning comes from the east and shines as far as the west, so will be the coming of the Son of man.
Wherever the body is, there the vultures will be gathered together.
The probable Q version:
For as the lightning lights up one side of the sky and shines to the other side of the sky, thus will be the day of the Son of man.
Where-so-ever the corpse may be there shall be gathered the vultures.
According to these two sayings people will be able to tell when the day of the son of man has arrived in the same way as they see lightening flashing across the sky and how they know where the corpse is because they see vultures gathering. The day of the son of man is in the future and so it is possible for Jesus to talk about a future time when the heavenly figure – son of man will come, without this being a reference to himself. It seems that early Christians could have created sayings that stated that Jesus would come again, but they didn’t, they re-interpreted son of man sayings and coming Lord Old Testament prophecies. I think Mt 24:42 is the closest we get to such a creation.
These are similar to another saying possibly a Q saying but more likely an L saying.
Lk 12:54-56 (maybe Mt 16:2-3)
He also said to the multitudes, "When you see a cloud rising in the west, you say at once, `A shower is coming'; and so it happens.
And when you see the south wind blowing, you say, `There will be scorching heat'; and it happens.
Hypocrites! The appearance of the earth and the sky you know how to interpret, yet this time you do not know how to interpret.
The point is the same they can see when a shower is coming or scorching heat and so they should be able to see “this time”, which could be a future time if we assume that we can’t rely on the context in Q, or “this time” is Christian redaction to apply this to the time of Jesus, when Jesus actually was referring to the coming in the future of the end of time event.
The problem is that Christians accepted that the second coming of Jesus could be likened to a sudden flash of lightening and they sometimes described it in negative terms. However it seems that early Christians did not write much about a coming son of man figure they applied these “visions” to the second coming of Jesus. It seems logical to apply to Jesus these “visions” in the same way they applied Old Testament texts to Jesus which referred to either the Messiah, or David or God or other figures.