ne.qa.rah denotes a rock opening used as a place of concealment or retreat in the supplied passages.

The two passages show a rock opening as a place where someone is set or enters: in Exodus 33:22 Moses is placed in one, and in Isaiah 2:21 people go into such openings in the rocks.

1. Rock opening used for shelter or retreat · dominant

   In Exodus 33:22, the singular construct form occurs in the clause where Moses is set in an opening of the rock; the APB renders the clause "I will set you in the crevice of the rock." In Isaiah 2:21, the plural construct form occurs where people go into openings of the rocks; the APB renders "They will go into the crevices of the rocks."

   Exodus 33:22Isaiah 2:21

In the Anselm Project Bible: The APB presents the singular as "the crevice of the rock" in Exodus 33:22 and the plural as "the crevices of the rocks" in Isaiah 2:21. These renderings follow the verse contexts.