When anyone hears the message of the kingdom but does not understand it, the evil one [i.e., the devil] comes to him and grabs away what had been sown in his heart. This is the person who was scattered to the side of the road.
Some of the seed that fell along the roadside represents where ‘the word’ was sown [i.e., preached]. When these people have heard, immediately Satan comes and takes away ‘the word’ which had been sown in them.
And those people [represented by the seed falling] along side of the road are those who have heard the word [of God], but the devil comes and takes away the word from their heart, so that they do not believe it and receive salvation.
“A farmer went out [to his field] to plant grain. And as he sowed [i.e., scattering seeds by hand], some of it landed along side of the road; it was stepped on by people and [eventually] birds of the sky came and ate it.