Paul also and Barnabas continued in Antioch, teaching and preaching the word of the Lord, with many others also.
It is also true that "preaching" and "teaching" are sometimes used interchangeably in the New Testament. But this does not disparage the fact that there are distinct truths primarily associated with each word.
The distinctive truths are: preaching is to the world; teaching is to the church.
Or, variously: preaching is to the unsaved; teaching is for the saved. I am no Greek scholar. My question is, why do our Greek scholars never teach this distinction? I have never heard the distinction made in the church, but only out of it.
Now, why might this be? Logically it is because these distinctions are not actually operative in the church. Not to be pedantic, but remember, "in the church" means "in the assembly" or "the meeting of the saints." It has nothing to do with a building.
I believe it is the conservative or fundamental Baptists–brethren with whom I feel a great affinity in many ways–who most famously tout "preaching" and their "preachers." To a lesser extent most evangelicals do the same. The problem is, the saints do not need the gospel preached to them again. Once saved, forever saved. Now it is true that "Christ, and Him crucified" is the foundation of all New Testament doctrine. Nevertheless the converted do not need saving again and again.
Now you may say, but there are unbelievers present who need to hear the gospel. Paul spoke of this in I Corin-thians 14:23-25,
If therefore the whole church be come together into one place, and all speak with tongues, and there come in those that are unlearned, or unbelievers, will they not say that ye are mad? But if all prophesy, and there come in one that believeth not, or one unlearned, he is convinced of all, he is judged of all: and thus are the secrets of his heart made manifest; and so falling down on his face he will worship God, and report that God is in you of a truth.
I believe there are many in the churches where the true gospel is actually preached, who believe that they are somehow sanctified by hearing the gospel preached Sunday after Sunday. To this the author of the book of Hebrews said, you need to be moving on to the meat of God's Word and off the milk, cf. Heb. 5:11ff. To others in these churches, they err in believing that hearing the gospel is the same as believing the gospel, and they remain unsaved.
"Jesus Christ and Him crucified" is foundational in all speaking ministries in the church. Yes, we will hear the gospel in the course of ministering to one another. But "the preacher" and "preaching" does away with all this and puts the Word in the hands of one man. Not only so, it is imagined that this is all there is. "I've gotta get my preaching every Sunday." This is the attitude of a mere babe in Christ.
Of course many of the men called preachers actually do teaching in their churches. This, however, is only proof that they are fulfilling the office of teacher and not pastor. Thus, "After their own lusts shall they heap to themselves teachers, having itching ears." II Tim. 4:3. Pastors, by contrast, while they are able to teach, have no mandate from the Word to dominate the teaching ministry in the churches.
What we have in the last days is countless teachers enshrined in the office of pastor in the churches. These teachers are called, variously, both preachers and pastors. To the detriment of the churches of God.