When you blow an alarm the second time, then the camps on the south side shall set out. An alarm shall be blown whenever they are to set out on their journeys.
When you go to war in your land against the enemy that oppresses you, then blow an alarm with the trumpets, that you may be remembered before the Lord your God, and you shall be saved from your enemies.
Also in the day of rejoicing, and in your set feasts, and at the beginnings of your months, you shall blow the trumpets over your burnt offerings and your peace offerings; thus they may be a remembrance before your God. I am the Lord your God.
On the twentieth day of the second month in the second year [since leaving Egypt], the cloud [of the Lord's presence] was taken up from over the tabernacle of the Testimony,
Then the standard of the camp of the sons of Dan, which was the rear guard of all the camps, set forward according to their companies; and over Dan's host was Ahiezer son of Ammishaddai.
And Moses said to Hobab son of Reuel the Midianite, Moses' father-in-law, We are journeying to the place of which the Lord said, I will give it to you. Come with us, and we will do you good, for the Lord has promised good concerning Israel.
They departed from the mountain of the Lord [Mount Sinai] three days' journey; and the ark of the covenant of the Lord went before them during the three days' journey to seek out a resting-place for them.