Man of God
Jesus said, And I know that his commandment is life eternal: the things therefore which I speak, even as the Father hath said unto me, so I speak.
The basic requirement to be called a witness is that one must have heard and seen it. The Apostles are the only credible witness who have seen and heard Jesus Christ.
What have heard and seen was written in the scriptures for the next generation to come: and the people which shall be created shall praise the LORD.
1 Jn 1:3 That which we have seen and heard we declare to you, that ye also may have fellowship with us: and truly our fellowship is with the Father, and with his Son Jesus Christ.
And who can teach all these things declared and written unto us by the Apostles of Christ?
2 Tim 2:2 And the things that thou hast heard from me among many witnesses, the same commit thou to faithful men, who shall be able to teach others also.
Please know that not everybody can teach because there is a testimony attached to the faithful men teaching the word of God.
Lk 21:14 Settle it therefore in your hearts, not to meditate before what ye shall answer.
Lk 21:15 For I will give you a mouth and wisdom, which all your adversaries shall not be able to gainsay nor resist.
If you are the man of God then be ready to answer problems concerning faith and you must open your line of communication because we have to test your spirit. If you are of God, and have overcome sins: then worry not because greater is he that is in you, than he that is in the world.