One of the two who heard John speak and followed Jesus was Andrew, Simon Peter’s brother. He first found his own brother Simon and said to him, “We have found the Messiah” (which means Christ). John 1:40-41 (ESV)
Who can tell what might have happened if Andrew had been of a silent, reserved, and uncommunicative spirit, like many a Christian in the present day? Who can tell but his brother might have lived and died a fisherman on the Galilean lake? But happily for Simon, Andrew was not a man of this sort. He was one whose heart was so full that he must speak… All who have received mercy ought to find a tongue, and to declare what God has done for their soul.
Ryle, J. (1857) Expository Thoughts on the Gospels, Monergism Books, pg. 1297-98
Semper Reformanda 