Mark was the only evangelist to record this miracle. He apparently included it in his Gospel because it is another instance of Jesus healing a Gentile. This particular miracle is also significant because it prefigured Jesus opening the spiritual ears of His disciples. From Mark 6:31, the beginning of the second withdrawal and return, to Mark 7:37, Jesus had been revealing Himself with increasing clarity to the disciples but with little response. A repetition of some of these lessons followed culminating in the disciples" confession of Jesus as the divine Messiah ( Mark 8:1-30). [source][source][source]