What is the difference between this and the preceding parable? In the first He speaks of those who hearkened not to Him, turning away, and rejecting the good seed. Here He speaks of heretics. He foretold this also lest later His Disciples might be troubled regarding this very matter. The parable that precedes this refers to those who did not receive His Word. This speaks of those who receive the corruptors of His Word. For it is the guile of the spirit of evil to commingle his own errors with the sowing of the truth, so that they have the shape and colour of truth, and so deceive the trusting. He then here speaks not of any seed, but only of tares, which resemble wheat.