Numbers 1:17

So Moses and Aaron took these men who had been designated by name,

These are the names of the men who are to assist you:

Elizur son of Shedeur from Reuben;

The doorkeeper opens it for him, and the sheep hear his voice. He calls his own sheep by name and leads them out.

And I heard the number of those who were sealed:

144,000 sealed from every tribe of the Israelites:

Treasury of Scripture Knowledge

And Moses and Aaron took these men which are expressed by their names:

These are the names of the men who are to assist you:

Elizur son of Shedeur from Reuben;

The doorkeeper opens it for him, and the sheep hear his voice. He calls his own sheep by name and leads them out.

And I heard the number of those who were sealed:

144,000 sealed from every tribe of the Israelites: