Divrey Hayamim Alef 10:13-14

Orthodox Jewish Bible

¹³ So Sha’ul died for his ma’al (unfaithfulness) which he committed against Hashem, even against the Devar Hashem, over which he was not shomer, and also for consulting an ov (one with a familiar spirit) to seek guidance;

¹⁴ And inquired not of Hashem; therefore He slaughtered him, and turned over the kingdom unto Dovid Ben Yishai.