RobH_en_tn/isa/28/20.md

General Information:

Yahweh continues to speak to the people of Jerusalem.

For the bed is too short for a man to stretch out on, and the blanket too narrow for him to wrap himself in

This was probably a proverb that the people knew at the time. It means that what they believe will keep them safe from Yahweh's punishment will disappoint them like a bed that is too short or a blanket that is too narrow. (See: rc://en/ta/man/translate/writing-proverbs)