The command to the priests discloses to them a little more, in bidding them pass over before the people, but the additional disclosure would only be an additional trial of faith; for the silence as to how so impossible a command was to be made possible is absolute. The swollen river had obliterated all fords; and how were priests, staggering under the weight of the ark on their shoulders, to 'pass over'? The question is not answered till the ark is on their shoulders. To-day often sees to-morrow's duty without seeing how it is to be done. But the bearers of the ark need never fear but that the God to whom it belongs will take care of it and of them. The last sentence of verse 6 is the anticipatory summary which closes each section. In verses 7-17 we have the narrative of the actual crossing, in its three divisions of God's command (vs. 7-8), Joshua's repetition of it (vs. 9-13), and the historical fact (vs. 14-17). The final instructions were only given on the morning of the day of crossing. The report of God's commands given in verses 7 and 8 is condensed, as is evident from the fuller statement of them in Joshua's address to the people, which immediately follows. In it Joshua is fully aware of the manner of the miracle and of the details of the crossing, but we have no record of his having received them. The summary of that eventful morning's instructions to him emphasises first the bearing of the miracle on his reputation. The passage of the Red Sea had authenticated the mission of Moses to the past generation, who, in consequence of it, 'believed God and His servant Moses.' The new generation are to have a parallel authentication of Joshua's commission. It is noteworthy that this is not the purpose of the miracle which the leader announces to the people in verse 10. It was a message from God to himself, a kind of gracious whisper meant for his own encouragement. What a thought to fill a man's heart with humble devotion, that God would work such a wonder in order to demonstrate that He was with him! And what a glimpse of more to follow lay in that promise, 'This day will I _begin_ to magnify thee I' The command to the priests in verse 8 is also obviously condensed; for Joshua's version of it, which follows, is much more detailed, and contains particular instructions, which must have been derived from the divine word to him on that morning.