Preaching is teaching and teaching is preaching.
God gives men understanding of His word so that they can feed the people of God and comfort them.
To preach with authority does not mean that you are loud, can boast several degrees, or show how many books you have published. A man that preaches with authority gets his doctrine form the word of God. He gives glory to God. He feedsthe sheep with knowledge and understanding. He loves like a shepherd and…