Bamidbar 25:2-4

Orthodox Jewish Bible

² And they invited the people unto the zevakhim of their g-ds; and the people did eat and bowed down to their g-ds.

³ And Yisroel joined himself unto Baal-Peor [see Num.23:28]; and the Af Hashem was kindled against Yisroel.

⁴ And Hashem said unto Moshe, Take Kol Rashei HaAm, and kill them, hanging them [on a tree, stake], before Hashem against the shemesh, that the fierce Af Hashem (Anger of Hashem) may be turned away from Yisroel.