What happens after the sowing of the seed is the vital matter. When I finished preaching what you do with God's and what becomes of it will decide your eternity.
Thorns stopped the seed becoming fruitful. Where did thorns come from?
There were no thorns in God's original creation. "And unto Adam he (God) said, Because thou hast hearkened unto the voice of thy wife, and hast eaten of the tree, of which I commanded thee, saying, Thou shalt not eat of it: cursed is the ground for thy sake; in sorrow shalt thou eat of it all the days of thy life; thorns also and thistles shall it bring forth to thee; and thou shalt eat the herb of the field," Genesis 3:17-18.
Man's sin was followed by God's judgment and the growth of thorns. These thorns represent "the cares of this world, and the deceitfulness of riches, and the lusts of other things," Mark 4:19. "Cares" means distractions. Notice riches are "deceitful."
These are the things which kill of that which springs up in shallow soil. Such soil will support thorns!