Against fertility cults (Isa 57:5-57:6)

“You burn with lust

Among the oak trees,

Under every green tree.

You slaughter your children

In the valleys

Under the clefts of the rocks.

Among the smooth stones of the valley

Is your portion.

They are your lot.

You have poured out a drink offering

To them.

You have brought a cereal offering

To them.

Shall I be appeased for these things?”

Third Isaiah strongly speaks out against the persistent fertility cults among the Israelites. They lusted among the green oak trees that were considered fertility oak trees. They killed their children among the valley gods under the caves in the rocks. They brought drink offerings and cereal offerings to the altar of these gods of the hills and the valleys. What was Yahweh to do with them? How would he be appeased?