יחזקאל ד:ז פירוש: רש״י

And to the siege of Jerusalem which is engraved on the brick, you shall direct your face; when you lie on your left side, the brick should be opposite you, and so too when you lie on your right.

and your arm shall be bared toward them (Other editions read: opposite it), like a fighting man. This symbolizes Nebuchadnezzar, who will fight against it.

bared Heb. חֲשּׂוּפָה, like גְלוּיָה.