Here the abstract noun "fearsomeness" can be translated with either an adjective or a verb. Alternate translation: "As for how terrifying you think you are" or "Although you think you scare other people" (See: [[rc://en/ta/man/jit/figs-abstractnouns]])
Here "heart" represents the whole person. People deceiving themselves is spoken of as if their pride deceived them. Alternate translation: "you have become prideful, but you have deceived yourselves" (See: [[rc://en/ta/man/jit/figs-metonymy]] and [[rc://en/ta/man/jit/figs-metaphor]])
It is implied that the people made homes in high places to remain safe from enemies. Alternate translation: "live in safety like an eagle in the heights of the mountains" (See: [[rc://en/ta/man/jit/figs-explicit]] and [[rc://en/ta/man/jit/figs-simile]])
Yahweh speaks of himself by name to express the certainty of what he is declaring. See how you translated this in [Jeremiah 1:8](../01/08.md). Alternate translation: "this is what Yahweh has declared" or "this is what I, Yahweh, have declared" (See: [[rc://en/ta/man/jit/figs-123person]])