Ephraim, he mixes himself among the nations. Ephraim is a pancake not turned over.
The Prophet here anticipates what the Israelites might object; for hypocrites, we know, never want pretenses. The Israelites might then bring forward this defense, “Thou sayest that we are now entangled in the pollutions of the heathens; but the heathens have no circumcision; among them the God of Israel is despised, there is no altar on which the people can sacrifice to the true God; we, on the contrary, are the children of Abraham, we have the God who stretched forth his hand to deliver us from Egypt, and the priesthood ever abides with us.” As then the Israelites might have introduced these pretenses for their superstitions, the Prophet says, by anticipation, that they were like bread baked under the ashes, which, being thrown on the hearth, is not turned, so that the baking might be equal; for then on the one side it would receive heat, and on the other there would be no proportionate temperature. “Ye are,” he says, “on one side burnt, but on the other crude; so that with you there is nothing but mere perfidiousness.” We now understand what the Prophet means. 