Being semi-divine gives you great license to do whatever you want- including the taking of lives.
…and quoting:
Josephus, on the other hand, states that the Urim and Thummim did exist for a while in the second temple and were used by second temple priests. He writes in his Antiquities (3:218) that the Urim and Thummim stopped shining, that is, ceased to function, only 200 years before he wrote the Antiquities, that is around 104 BCE, the death of John Hyrcanus (134-104)
But in the empty place of this garment (ie., the Ephod) there was inserted a piece of the size of a span, embroidered with gold, and the other colors of the Ephod, and was called Essen (the breastplate,) which, in the Greek language, signifies the Oracle.
Yet will I mention what is still more wonderful than this: for God declared beforehand by those twelve stones which the high priest bare on his breast, and which were inserted into his breastplate, when they should be victorious in battle; for so great a splendor shone forth from them before the army began to march, that all the people were sensible of God’s being present for their assistance.
Where it came to pass that those Greeks who had a veneration for our laws, because they could not possibly contradict this, call that breastplate the oracle.
Now this breastplate, and this sardonyx, stopped shining two hundred years before I composed this book, God having been displeased at the transgressions of his law (Ant. 3:163, 216 - 218)
Josephus also connects the high priestly office with the gift of prophecy, but always to high priests living before Hyrcarius death. Moreover, the priest’s prophetic ability is always executed through the high-priestly vestments, the Ephod, the breastplate, and the Urim and Thummim, which josephus calls the oracle. Josephus believed that the high priest used his Urim and Thummim to inquire of God. He states, for example (Ant. 4:311), that “Moses taught them…how they should go forth to war, making use of the stones (of the high priest’s breastplate) for their direction.” Josephus alleges (Ant. 13:282-83), for example, that Hyrcanus heard a voice from above which revealed that his sons had just defeated Antiochus in battle…He heard the voice while in the temple, thus while wearing the priestly vestments. To Josephus, Hyrcanus “was accounted by God worthy of three of the greatest privileges: the rule of the nation, the office of high-priest, and the gift of prophecy” (Ant 13:299, wars 1:68)
There a point to all of this, that is, with the prophet Samuel - and Chana (Hannah, and with the passage "Now Eli the priest was sitting on his chair by the doorpost of the LORD’s house. 10 In her deep anguish Hannah prayed to the LORD, weeping bitterly. 11 And she made a vow, saying, “LORD Almighty, if you will only look on your servant’s misery and remember me, and not forget your servant but give her a son, then I will give him to the LORD for all the days of his life, and no razor will ever be used on his head. 12 As she kept on praying to the LORD, Eli observed her mouth. 13 Hannah was praying in her heart, and her lips were moving but her voice was not heard. Eli thought she was drunk 14 and said to her, “How long are you going to stay drunk? Put away your wine.” )
The function of the breastplate gave the High Priest the ability to prophesize but also that it gave to the High priest - judgments (asking HaShem for guidance). Eli - who I understood, served a dual office of being the High priest and judge, misunderstood the symbols on the breastplate, and mistook the “weeping” of Hannah. Although, the prophet Samuel, came to him announcing God’s judgments (without the use of the breastplate - is the point) because of the sin of his family, but still this did not take away from the position of the high office.
The hypothesis that second temple priests before the death of John Hyrcanus had access to the urim and thummin (and consequently shared the gift of prophecy) can be tested against the alternative hypothesis that the Urim and Thummim did not exist at all in the second temple and that second temple priest were not perceived as having prophetic abilities. This can be done by examining second temple texts which describe the contemporary high priest and which can be dated prior to 104 BCE. If these texts imply that their contemporary high priest had access to Urim and Thummim and to God’s word it will support the view of Josephus over that of the Talmud. If these text do not include a reference to the Urim and Thummim or imply that priests did not have privileged access to God’s word, it will support the view of the Talmud over that of Josephus. **the entire Ephod becomes a method for accessing the divine will, a method of prophecy - and I think the passage out Hosea notes; “Therefore the sons of Israel will live many days with neither king, nor ruler, nor sacrifice, nor altar, nor priesthood, nor Urim”…
Reference:
Did Second Temple High Priests Possess the Urim and Thummim