'Kingdom' in the Bible

And in the first year of Cyrus king of Persia, at the completion of the word of Jehovah from the mouth of Jeremiah, hath Jehovah waked up the spirit of Cyrus king of Persia, and he causeth an intimation to pass over into all his kingdom, and also in writing, saying,

By me hath been made a decree that every one who is willing, in my kingdom, of the people of Israel and of its priests and Levites, to go to Jerusalem with thee, doth go;

all that is by the decree of the God of heaven, let be done diligently for the house of the God of heaven; for why is there wrath against the kingdom of the king and his sons?