He taught them (εδιδασκεν αυτους). Imperfect tense describing it as going on.

In parables (εν παραβολαις). As in Mark 3,23Markus 4,13Markus 4,21Lukas 8,16Markus 4,26-29Markus 4,1-34Markus 4,34Matthäus 13,34

Hearken (Ακουετε). It is significant that even Jesus had to ask people to listen when he spoke. See also verse Mark 4:9