What name did the LORD tell Isaiah to give his son born to the prophetess?

Answer: Maher-shalal-hash-baz

Before the boy could say "Father" or "Mother," Assyria would carry off the wealth of Damascus and Samaria.

“Then the LORD said to me, “Take a large scroll and write on it with an ordinary stylus: Maher-shalal-hash-baz.”— Isaiah 8:1 (BSB)