Isaiah 57:5-6 who call upon idols under the leafy trees, slaying your children in the valleys among the rocks?

Brenton⁽ⁱ⁾ ⁵ who call upon idols under the leafy trees, slaying your children in the valleys among the rocks? ⁶ That is thy portion, this is thy lot: and to them hast thou poured forth drink-offerings, and to these hast thou offered meat-offerings. Shall I not therefore be angry for these things?