'Inner chambers' in the Bible

And He saith unto me, 'Hast thou seen, son of man, that which elders of the house of Israel are doing in darkness, each in the inner chambers of his imagery, for they are saying, Jehovah is not seeing us, Jehovah hath forsaken the land?'

“Therefore, son of man, prophesy and strike your hands together; and let the sword be doubled the third time [in intensity], the sword for the slain. It is the sword for the great slaughter which surrounds them [so that no one can escape, even by hiding in their inner rooms],