Arcana Coelestia # 7517
7517. 'And Jehovah said to Moses and to Aaron' means fresh instruction. This is clear from the meaning of 'Jehovah said' as instruction, as above in 7497. The instruction is fresh because a new state is dealt with now, the previous one having come to an end. Instruction given by Jehovah comes through the truth that emanates from Him; and truth that emanates from Jehovah is represented by 'Moses and Aaron', inward truth by 'Moses' and outward truth by 'Aaron', 7382.
Arcana Coelestia # 7382
7382. 'Stretch out your hand with your rod' means the power of inward truth directed through outward truth. This is clear from the meaning of 'hand' as spiritual power, which belongs to inward truth, and from the representation of 'rod' as natural power, which belongs to outward truth, both dealt with in 6947, 6948. For the fact that all power in the spiritual world belongs to truth, see 3091, 3787, 4931, 6344, 6423, 6948. Since 'Moses' represents inward law, which is the same as inward truth, and 'Aaron' represents outward law, which is the same as outward truth, and since inward truth flows into outward truth and gives it power, 7381, Moses' word of command to Aaron 'stretch out your hand with your rod' means the power of inward truth directed through outward truth.