John Trapp on Mark 4:2

Verse 2. He taught them many things by Parables.] MInisters must like wise fetch comparisons from things most familiar, and best known to their hearers: as the Prophets from when they have to deale with the Egyptians, from flocks and herds; when with the Arabians, from Merchandise and Navigation; when with the Tyrians and Sidonians, &c. And as our Saviour from fishing, when he dealeth with fishers: from sowing when with seedsmen, &c.