Peter, James and John were simple fishermen, but when they were filled with the Holy Spirit, they amazed the religious leaders with God's wisdom.
Paul was one of the most educated men alive in his time. He had a zeal for God that led him to kill Believers. When he was saved, anointed by God, wisdom transformed him into one of the greatest evangelists of all time.
Knowledge is good. However, knowledge without wisdom is very dangerous. I would prefer an anointed man of God as a shepherd, before a theologian who is a spiritual babe. The latter usually places all confidence in the flesh - his knowledge and achievement. The Spirit-filled Believer leans heavily on God's Wisdom and Word, knowing that he is nothing without God's Truth and guidance. I have experienced examples of both types over the years, and seen the successes and rather dramatic failures of both.
I believe the revival is here, happening as we speak all over the world. People are so tired of religion. They want to really KNOW God, and worship Him the way He wants - in Spirit and Truth. I hear the same story often from folks that have sat in the same pews, heard the same sermons, watched the same ceremonies, and sang the same old songs. They are spiritually hungry and want more of God. Praise God there is so much more - you can have fresh revelation every day from Him. And He is raising up ministers, ministries, and churches to feed His Body His Pure Word. And if they can't get it from their local church, they will turn to their own Bible study, house churches, radio, TV, books, or even the Internet. I am amazed by the number of Internet visits I get from nations that are openly hostile to Christianity. God's Word is being preached all over the globe. Its the Truth that makes people free. And even if God has to use a talking donkey, He will water thirsty ground.
I agree that God uses simple men often to spread the love of Christ.
but he also uses people who know the word of God in depth. The reformation leaders for example were deeply learned men who were able to keep false teaching at bay because they were so learned in scripture as well as heresy that had occurred throughout history.
I believe there is so much lousy teaching around today because there are not enough people educated in the word of God preaching from the pulpits.