The phrase, man of God, is mentioned twice in the NT : 1 Tim. 6:11, 2 Tim. 3:17. It is mentioned 71 times in the OT.
If God’s measure for a man is that he should be a man of God; or for a woman, a woman of God, then what happens when they don’t live up to what they are in Christ? Do we say they are less than a man or woman of God? Half a man of God? Not quite a man of God? Half-baked?
Wouldn’t it be a tragedy if, in the instance of a saved person, the brethren couldn’t honestly say confidently that person is a man or woman of God?
Regardless of our specific gifts and callings, we ALL should be able to be identified as men and women of God.