When anyone hears the word of the kingdom [regarding salvation] and does not understand and grasp it, the evil one comes and snatches away what was sown in his heart. This is the one on whom seed was sown beside the road.
Then He said to them, “Do you not understand this parable? How will you understand and grasp the meaning of all the parables? [Matt 13:18-23; Luke 8:11-15]
Those beside the road are the people who have heard; then the devil comes and takes the message [of God] away from their hearts, so that they will not believe [in Me as the Messiah] and be saved.
So get rid of all uncleanness and all that remains of wickedness, and with a humble spirit receive the word [of God] which is implanted [actually rooted in your heart], which is able to save your souls.