The Lord God of heaven - Or, “Yahweh, the God of heaven.” In the original Persian, the document probably ran - “ Ormazd, the God of heaven.” The Hebrew transcript took “Yahweh” as the equivalent of “Ormazd.” The Persian notion of a single Supreme Being - Ahura-Mazda, “the much-knowing, or much-bestowing Spirit” - did, in fact, approach nearly to the Jewish conception of Yahweh.
Hath given me all the kingdoms ... - There is a similar formula at the commencement of the great majority of Persian inscriptions.
He hath charged me to build him an house - It is a reasonable conjecture that, on the capture of Babylon, Cyrus was brought into contact with Daniel, who drew his attention to the prophecy of Isaiah Isaiah 44:28; and that Cyrus accepted this prophecy as a “charge” to rebuild the temple.