'Man of God' in the Bible

and heads of the Levites: Hashabiah, Sherebiah, and Jeshua son of Kadmiel, and their brethren, are over-against them, to give praise, to give thanks, by command of David the man of God, charge over-against charge.

and his brethren Shemaiah, and Azarael, Milalai, Gilalai, Maai, Nethaneel, and Judah, Hanani, with instruments of song of David the man of God, and Ezra the scribe is before them;