'Man of God' in the Bible

And the chiefs of the Levites: Hashabiah, Sherebiah, and Jeshua, the son of Kadmiel, with their brothers opposite them, to give blessing and praise as ordered by David, the man of God, watch against watch.

And his brothers, Shemaiah, and Azarel, Milalai, Gilalai, Maai, Nethanel and Judah, Hanani, with the music-instruments of David, the man of God; and Ezra the scribe was at their head;