Numbers 10:25
And the standard of the camp of the children of Dan set forward, which was the rereward of all the camps throughout their hosts: and over his host was Ahiezer the son of Ammishaddai. And the standard of the camp of the children of Dan set forward, which was the rereward of all the camps throughout their hosts: and over his host was Ahiezer the son of Ammishaddai.
Each tribe journeyed in an orderly arrangement, every division moving under its own standard. Within that order the camp of the children of Dan set forward last, forming the rear guard of all the camps throughout their hosts. Over the host of Dan was Ahiezer the son of Ammishaddai.