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 42:11
11
Let the wilderness and its cities raise their voices, with the villages that Kedar inhabits. Let the inhabitants of Sela sing. Let them shout from the top of the mountains!