Here the way that Yahweh protects Jerusalem is compared to the way that a mother bird protects her baby birds in their nest. (See: [[rc://en/ta/man/jit/figs-simile]])
This speaks of how Yahweh protects and rescues Jerusalem, describing him as a bird that flies over the city. Alternate translation: "he will protect and rescue the city from it's enemies" (See: [[rc://en/ta/man/jit/figs-metaphor]])