Numbers 2:25

Of the sons of Dan, their genealogical registration by their families, by their fathers’ households, according to the number of names, from twenty years old and upward, whoever was able to go out to war,

And the leader of the fathers’ households of the families of Merari was Zuriel the son of Abihail. They were to camp on the northward side of the tabernacle.

On the tenth day it was Ahiezer the son of Ammishaddai, leader of the sons of Dan;

Then the standard of the camp of the sons of Dan, according to their armies, which formed the rear guard for all the camps, set out, with Ahiezer the son of Ammishaddai over its army,