"“You have called the attention of the people to important subjects, which, to a large number, are strange and new. To some they are intensely interesting. The laborers in word and doctrine have done what they could in presenting the truth. But unless there is a more thorough effort made to fasten these impressions upon minds, your efforts will prove nearly fruitless. Satan has many attractions ready to divert the mind; and the cares of this life and the deceitfulness of riches all combine to choke the seed of truth sown in the heart. LS 216.2"
"He also that received seed among the thorns is he that heareth the word; and the care of this world, and the deceitfulness of riches, choke the word, and he becometh unfruitful."
The EGW passage directly echoes the language and concept of the parable of the sower, specifically the part about the cares of the world and deceitfulness of riches choking the word.
"“In every effort such as you are now making, much more good would result from your labors if you had appropriate reading matter ready for circulation. Tracts upon the important points of truth for the present time should be handed out freely to all who will accept them. You are to sow beside all waters. LS 216.3"
"Blessed are ye that sow beside all waters, that send forth thither the feet of the ox and the ass."
EGW directly quotes "sow beside all waters" from Isaiah 32:20, making it an explicit allusion.