en_tn_condensed/ezr/06/12.md

who lifts a hand to violate ... or to destroy

"who tries to violate ... or to destroy" or "who dares to violate ... or to destroy"

to violate this decree

"to violate what I have decreed" or "to do what this decree says no one should do"

I, Darius, hereby issue this decree

The phrase "hereby issue" means that Darius, by speaking, is issuing the decree.