The signs of a believer does not mention prophecy.
Mark 16:
17] And these signs shall follow them that believe; In my name shall they cast out devils; they shall speak with new tongues;
[18] They shall take up serpents; and if they drink any deadly thing, it shall not hurt them; they shall lay hands on the sick, and they shall recover
Here they were filled with the Holy ghost and spoke in tongues,no prophecy here either.
Acts 10:
44] While Peter yet spake these words, the Holy Ghost fell on all them which heard the word.
[45] And they of the circumcision which believed were astonished, as many as came with Peter, because that on the Gentiles also was poured out the gift of the Holy Ghost.
[46] For they heard them speak with tongues, and magnify God. Then answered Peter,
Here they recieved the Holy Ghost and spoke in tongues, then prophesied.
Acts 19:
[6] And when Paul had laid his hands upon them, the Holy Ghost came on them; and they spake with tongues, and prophesied.
These other verses from Romans,Corinthians ect, were written to already established churches.These people were already filled with the Holy Ghost and had spoke in tongues.These were written as instuction and were to be used to further their walk with God.I have no problem with prophecy,but do not believe it is a sign of recieving the Holy Ghost.