John Gill Commentary Ezra 6:7

"let the work of this house of God alone; let the governor of the Jews and the elders of the Jews build this house of God in its place." — Ezra 6:7 (ASV)

Let the work of this house of God alone
Suffer them to go on with it, and do not hinder them; it looks, by these expressions, as if he had some suspicion or hint given him that they were inclined to molest them, or that there were some that stirred them up to it, and were desirous of it:

let the governor of the Jews, and the elders of the Jews, build this
house of God in his place ;
where it formerly stood; that is, go on with the building of it.