Deuteronomy 18:11

one who casts spells, ¹  one who conjures up spirits, ²  a practitioner of the occult, ³  or a necromancer. ⁴ 

1Sa 28:11-14

¹ tn Heb “a binder of binding” (חֹבֵר חָבֶר, khover khaver). The connotation is that of immobilizing (“binding”) someone or something by the use of magical words (cf. Ps 58:6; Isa 47:9, 12).

² tn Heb “asker of a [dead] spirit” (שֹׁאֵל אוֹב, sho’el ’ov). This is a form of necromancy (cf. Lev 19:31; 20:6; 1 Sam 28:8, 9; Isa 8:19; 19:3; 29:4).

³ tn Heb “a knowing [or “familiar”] [spirit]” (יִדְּעֹנִי, yiddÿ’oniy), i.e., one who is expert in mantic arts (cf. Lev 19:31; 20:6, 27; 1 Sam 28:3, 9; 2 Kgs 21:6; Isa 8:19; 19:3).

⁴ tn Heb “a seeker of the dead.” This is much the same as “one who conjures up spirits” (cf. 1 Sam 28:6-7).