A few things:
God can only be revealed in a limted way to Us as we are NOW, we are limited in our capacity to understand God.
God is revealed to us in th Universe he created, in the words of men inspired to write about him (this is STILL going on and is nt limited to the bible by the way) and God is revealed in the "best" possible way for us human through his ONLY Son, Jesus Christ.
To focus only on only 1 or 2 ways in which God is revealed gives us only a partial picture, even more partial then when we understand ALL his revelation.
Jesus gave a commission to SOME of His followers, not all, to preach the word and as Paul mentiones, not ALL are qualified to be teachers or preachers or healers or prophesiers.
Each one of us gets the gifts that the HS gives unto US when we accept Jesus As our Lord and saviour.
Not ALL can or should be teachers or preachers or healers, etc, etc.
Lets be truthful here for a moment, when we try to preach our Lord and the Gospel, if we end up turning away more people and make people dislike Our Lord, perhaps we are NOT suited for preaching work and should leave that for those that CAN preach the Word of God and preach it well.