Arcana Coelestia # 8580
8580. 'Take in your hand, and go' means that furnished with that power, he is to carry out what has been commanded. This is clear from the meaning of 'taking in his hand' - taking his rod in it - as being furnished with that power. The fact that 'go' means carrying out what has been commanded is clear without explanation.
Isaiah 31:8-9
8
"The Assyrian will fall by the sword, not of man; and the sword, not of mankind, shall devour him. He will flee from the sword, and his young men will become subject to forced labor.
9
His rock will pass away by reason of terror, and his princes will be afraid of the banner," says Yahweh, whose fire is in Zion, and his furnace in Jerusalem.