'Couch' in the Bible

Unstable as water, thou shalt not excel; because thou wentest up to thy father's bed; then defiledst thou it: he went up to my couch.

When I say, My bed shall comfort me, my couch shall ease my complaint;

When they couch in their dens, and abide in the covert to lie in wait?

I am weary with my groaning; all the night make I my bed to swim; I water my couch with my tears.

Thus saith the LORD; As the shepherd taketh out of the mouth of the lion two legs, or a piece of an ear; so shall the children of Israel be taken out that dwell in Samaria in the corner of a bed, and in Damascus in a couch.