isaiah 66:4 I also will choose their delusions, and will bring their fears upon them; because when I called, none did answer; when I spake, they did not hear: but they did evil before mine eyes, and chose that in which I delighted not. - Free Bible Online

      4. delusions-- (2Th 2:11), answering to "their own ways" (Isa 66:3; so Pr 1:31). However, the Hebrew means rather "vexations," "calamities," which also the parallelism to "fears" requires; "choose their calamities" means, "choose the calamities which they thought to escape by their own ways."
      their fears--the things they feared, to avert which their idolatrous "abominations" (Isa 66:3) were practised.
      I called . . . none . . . answer--(See on Isa 65:12; Isa 65:24; Jer 7:13).
      did . . . chose--not only did the evil deed, but did it deliberately as a matter of choice (Ro 1:32). "They chose that in which I delighted not"; therefore, "I will choose" that in which they delight not, the "calamities" and "fears" which they were most anxious to avert.
      before mine eyes--(See on Isa 65:3).

JFB.