Isaiah 57:8 in the King James Version
Behind the doors also and the posts hast thou set up thy remembrance: 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.
Context
7 On a high and lofty mountain you have set your bed. You also went up there to offer sacrifice.
8 You have set up your memorial behind the doors and the posts, for you have exposed yourself to someone besides me, and have gone up. You have enlarged your bed and made a covenant for yourself with them. You loved what you saw on their bed.
9 You went to the king with oil, increased your perfumes, sent your ambassadors far off, and degraded yourself even to Sheol.