Where the word is sown (οπου σπειρετα ο λογος). Explanatory detail only in Mark.

Satan (Σατανας) where Matthew 13:19 has

the evil one (ο πονηρος) and Luke 8:12 the devil (ο διαβολος).

Sown in them (εσπαρμενον εις αυτους). Within them, not just among them, "in his heart" (Matt.).