The number three occurs a significant number of times here. Jesus travels with three disciples, and leaves and prays three times. He has predicted all this will occur three times. Some have seen the occurrence of three a divine symbol, others a sign of Mark's narrative ability. The use of three is perhaps indicative of an oral source for Mark, as three is a common feature of orally transmitted stories, such as jokes (So Jesus, Muhammad, and Buddha walk into a bar...). (Brown 145) Matthew has him leave and return three times but Luke seems to say he only went away once, and that he was visited by an angel and his sweat became "...like drops of blood...", perhaps a symptom of hematidrosis.