Charles Spurgeon Commentary Isaiah 57:8-9

"And behind the doors and the posts hast thou set up thy memorial: for thou hast uncovered [thyself] to another than me, and art gone up; thou hast enlarged thy bed, and made thee a covenant with them: thou lovedst their bed where thou sawest it. And thou wentest to the king with oil, and didst increase thy perfumes, and didst send thine ambassadors far off, and didst debase thyself even unto Sheol." — Isaiah 57:8-9 (ASV)

For thou hast discovered thyself to another than me, and art gone up; thou hast enlarged thy bed, and made thee a covenant with them; thou lovedst their bed where thou sawest it. And thou wentest to the king with ointment, and didst increase thy perfumes and didst send thy messengers far off, and didst debase thyself even unto hell.

When they were in trouble, instead of going to God, they went to the king of Egypt, so that he might come and help them against the king of Assyria; but they would never turn to God. They loved idols, and so they trusted in an arm of flesh. They forgot the invincible arm that had overthrown Pharaoh at the Red Sea and worked such wondrous miracles for the deliverance of his people. And they made gods of the kings of the earth and trusted in them, and didst debase thyself even unto hell.