From all Israel people are now coming to Jesus. Mark distinguishes two groups among those present: a) the witnesses of his deeds (followers from Galilee) and b) those who have heard about those deeds (streams of people from Judea, Jerusalem, Idumea, Perea, and from the neighbouring territory of Tyre and Sidon). There are two great crowds (one of which is mentioned in Mark 3:7 and the other in Mark 3:8) and they represent, as appears from the description of the areas, the entire people of Israel.1
7 Jesus withdrew with his disciples to the sea, and a great crowd followed, from Galilee and Judea