Psalms 106:24-28

Psalms 106:24-28. They believed not his word: but murmured in their tents, and hearkened not unto the voice of the LORD. Therefore he lifted up his hand against them, to overthrow them in the wilderness: to overthrow their seed also among the nations, and to scatter them in the lands. They joined themselves also unto Baalpeor, and ate the sacrifices of the dead.

They began to study necromancy and spiritualism, and to join in the abominations of the worship of Baal.