9423. 'Until we return [to you]' means till there is a reply. This is clear from the meaning of 'returning' as a reply; for when 'sitting in this [place]' means remaining in that state, 9422, 'returning' means they are to be told what is to be done then, and so means a reply.
Exodus 17:10-13
10
So Joshua did as Moses had said to him, and fought with Amalek: and Moses, Aaron, and Hur went up to the top of the hill.
11
And it came to pass, when Moses held up his hand, that Israel prevailed: and when he let down his hand, Amalek prevailed.
12
But Moses' hands were heavy; and they took a stone, and put it under him, and he sat thereon; and Aaron and Hur stayed up his hands, the one on the one side, and the other on the other side; and his hands were steady until the going down of the sun.
13
And Joshua discomfited Amalek and his people with the edge of the sword.
