The office of the priest/believers are to plant seed. Each can example that by feeding Truth of The Word. The Word being of Christ Jesus, the begotten Son of God, worthy to follow, and hear His voice which is found in what is written. And walking as He walked in righteousness according to His Father's Will. There is only One mediator, the Holy Spirit that was in Christ as he can also be within us.
More over would be, that The Holy Spirit will come to us and anoint us, Christ stands at the door and knocks. The Holy Spirit resides within us that do follow, and will keep us in His Ways.
Some men will say, God will keep you in all your ways... That is a lie! Because the Spirit resided within those that follow.. Christ did show us of satan's work in enticing words.
Hear Christ words: "Thou shalt not tempt the Lord thy God" Note: To walk outside the light is to tempt God...
Hear Christ words, "Man does not live by bread alone, but in every word that proceedeth out of the mouth of God" The anointing which ye have received of him abideth in you.... (note he has come to you)... then anointing which ye have received of him abideth in you.... (note within you resided The Holy Spirit)ye need not that any man teach you.. (For He will guide you in His way) Psalms 91:11 For he shall give his angels charge over thee, to keep thee in all thy ways.
Each should question, what are thy ways when you walk in Christ? Thy ways are rigtheousness, the meat of The Word. Doing as Christ fulfilled for us to do, according to His way, His voice as one in Christ, just as Christ was one in His Father...
We must go beyond the milk of babes seeking His Ways