Well, this is a very interesting question.
It's very important to identify if the Man of God you are under in your church is really a true Man of God because today we have so many fake pastors and prophets whose priorities are to extort money from people and mislead people through fake visions.
Jesus warn us to be careful that some prophet who are wolves will come like sheep to deceive christains.
And also he said that by their fruits you shall know them.
There are many ways to know if a man of God is fake or real.
A true Man of God must have the spirit of God in him, you have to learn how to discern the right spirit.
A true Man of must possess the following according to the scripture below;
1 Timothy 3:2 A bishop then must be blameless, the husband of one wife, vigilant, sober, of good behaviour, given to hospitality, apt to teach; 3:3 Not given to wine, no striker, not greedy of filthy lucre; but patient, not a brawler, not covetous; 3:4 One that ruleth well his own house, having his children in subjection with all gravity; 3:5 (For if a man know not how to rule his own house, how shall he take care of the church of God?) 3:6 Not a novice, lest being lifted up with pride he fall into the condemnation of the devil. 3:7 Moreover he must have a good report of them which are without; lest he fall into reproach and the snare of the devil.
These are some of the attributes a true Man of God must possess based on God's word
The transparency of his actions