Here Aaron who was the first Kohen Gadol wore the Urim Thummim – the first AI computer? When asked a question, letters on the jewels would light up as G-d’s answers. Here the question as to who would lead the people confronting the Canaanites it was Judah according to the lit-up letters to take on this responsibility. This object no longer exists for us to get responses from Hashem to our pressing questions. Now we look deep inside for this illumination, or if fortunate enough, have sages with wisdom to advise us.