1SA 19:24

24 There he took off his clothes, and he spoke messages from God in front of Samuel. He lay on the ground doing that all day and all night. That is the reason that [when people see someone doing something that is very unexpected, they think about what happened to Saul, and] they say, “We are surprised, like the people were surprised to see Saul [acting like] a prophet?” [RHQ]