Matthew Poole and continuators on 1 Samuel 28:6

6 And when Saul enquired of the LORD , the LORD answered him not , neither by dreams, nor by Urim, nor by Prophets .

In his slight and perfunctory way, as chap. 14. 19. as appears from hence, that when God did not speedily answer him, he goes to the Devil for an answer, v. 7. For which reason he is said, not to have enquired of the Lord, 1 Chron. 10. 14. i. e. not seriously, and after the right order. Possibly he enquired by some Prophet then with him, or by the Priest before the Ark.

Because he sought him not in due order, not by the Urim and Thummim which were in the Ephod, which he by his cruelty to the Priests had lost, chap. 23. 6. and because he did not truly repent of, nor put away his sins, which provoked God, and kept him from answering; as Saul well knew by his own conscience and experience, chap. 14. 37, 38, 39.

i. e. Neither by ordinary means, nor extraordinary.