Isaiah
Isaiah 57:8ESV·traditional attribution

Behind the door and the doorpost you have set up your memorial; for, deserting me, you have uncovered your bed, you have gone up to it, you have made it wide; and you have made a covenant for yourself with them, you have loved their bed, you have looked on nakedness.

Matthew Henry Presbyterian @wholebiblehenry

We have here a high charge, but a just one no doubt, drawn up against that wicked generation out of which God's righteous ones were removed, because the world was not worthy of them. Observe, I. The general character here given of them, or the name and title by which they stand indicted, Isa 57:3.

Commenting on Isaiah 57:3-12

John Gill Reformed Baptist @doctorgill

Behind the doors also and the posts hast thou set up thy remembrance,.... The memorial of thine idols, as the Targum. As the Heathens had their "lares" and "penates", their household gods, so the Papists have their tutelar images, which they place in their houses, and in their bedchambers; their images of saints, their crucifixes and superstitious pictures, which they call "memories", and "laymen's books"...

Jamieson-Fausset-Brown Reformed @jfbcommentary

"Remembrance," that is, memorials of thy idolatry: the objects which thou holdest in remembrance. They hung up household tutelary gods "behind the doors"; the very place where God has directed them to write His laws "on the posts and gates" (Deu 6:9; Deu 11:20); a curse, too, was pronounced on putting up an image "in a secret place" (Deu 27:15). discovered thyself--image from an adulteress. enlarged . . .