ears to hear

...by preaching in parables, Jesus is issuing a new sort of calling. He called Simon, Andrew, James and John by the sea [Mark 1:6-20] and then Levi [Mark 1:13-17] and then chose the twelve [Mark 3:13-19]. Now that those callings have been issued, He is teaching by the seashore, issuing a general call for those with ears to hear. (p86 The Victory According to Mark).