The texts in full: Matthew 13:10–17, Mark 4:10–12, Luke 8:9–10, "that seeing they may see, and not perceive," quoting Isaiah 6:9–10, the prophet's hardening commission; beside them Mark 4:33–34, "with many such parables spake he the word unto them, as they were able to hear it," and Matthew 13:34–35 framing parable-speech itself as fulfillment of Psalm 78:2 (one of Matthew's ten formula quotations, per the atlas quotation-formulas lens).
Two readings, both steelmanned: the judgment reading: after rejection, parables judicially veil the kingdom from the hardened while revealing it to disciples, in Isaiah's own pattern; the mercy reading: parables lodge truth past defenses exactly as Nathan's story caught David (2 Samuel 12), the veiling is invitational and temporary ("who hath ears to hear, let him hear," Mark 4:9), and the common people "heard him gladly" (Mark 12:37). The tension is present in the same passages; the page adjudicates neither.
A grammatical crux sits underneath both: Mark's hina ("that") reads as purposive, Matthew's own hoti at 13:13 ("because they seeing see not") reads as causal: the same event, two conjunctions, and interpreters divide on which controls.
A further contested layer, steelmanned rather than settled: what does Matthew 13 itself mean by "the mysteries of the kingdom of heaven" (13:11)? MannaFest's home reading is dispensational: Matthew 13 marks the turn after Israel's leaders reject the King in chapter 12, and the parables unveil a previously hidden interim form of the kingdom, present in mystery between rejection and a future, literal reign [Alva J. McClain, The Greatness of the Kingdom, 1959; Stanley Toussaint, Behold the King, 1980, cite-only].
The steelmanned alternative holds the kingdom as genuinely inaugurated now, not postponed, a present reality moving toward its own future consummation [George Eldon Ladd, The Presence of the Future, 1974, cite-only]. Both readings sit on the same text; the flag is MannaFest's, the alternative is not flattened. The companion page The Kingdom Parables walks Matthew 13's seven parables in full. Sources: ASV text (PD); parables brief §2; parables-why brief §4.