Jeshua - See the marginal reference. Not the high priest, but the head of one of the two Levitical houses which had returned.
Together - The Hebrew phrase is very emphatic - “they stood up as one man.”
Matthew Henry
Concise Bible Commentary
There was a remarkable mixture of affections upon laying the foundation of the temple. Those that only knew the misery of having no temple at all, praised the Lord with shouts of joy. To them, even this foundation seemed great. We ought to be thankful for the beginnings of mercy, though it be not yet perfect. But those who remembered the glory of the first temple, and considered how far inferior this was likely to be, wept with a loud voice. There was reason for it, and if they bewailed the sin that was the cause of this melancholy change, they did well. Yet it was wrong to cast a damp upon the common joys. They despised the day of small things, and were unthankful for the good they enjoyed. Let not the remembrance of former afflictions drown the sense of present mercies.
SDA Bible Commentary (limited)
Volume 1-7
9. Jeshua. The supervision of the work was under three groups, probably arranged according to the population of the new province of Judea. Jeshua was the head of the priesthood, Kadmiel was spokesman for the tribe of Judah, and Henadad was apparently the leader of the lower rank of Temple personnel.