Then Amose replied to Amaziah, "I am not a prophet, nor am I son of a prophet; for I am a herdsman and a grower of sycamore figs.To properly understand this verse, you must understand that there was a sort of "professional prophets gild" of sorts in many ancient nations. They often served as divine councelers to kings and or in the temple. Israel and Judah were no exceptions. You can see this in the likes of Saul consulting Samuel, or David consulting Nathan and the like. Generally, the OT prophets regarded many of these professional prophets as false, because they often got carried away with the national Baal worship. Thus many lamentations of "the prophets prophesy by Baal..."So, when Amos says "I am not a prophet" he is saying that his "trade" is not as a prophet. He's no professional. Rather, his profession is as a herdsman. Essentially in Amos 7, he's being sarcastic. The notion that there are people who are not "office" prophets, yet are simply "gifted" prophets is something entirely foreign to the thought of Scripture. When the Spirit of the Lord came upon the 70 elders of Israel, even though they never prophesied again, they were regarded as among the prophets. The same goes with Saul, who when the Spirit of the Lord came upon him it was said, "Is Saul now among the prophets?" And in Corinthians, Paul identifies the individual who prophesies as a prophet. While we might not think of a person who prophesies just once or twice in their lifetime as a prophet, simply because of their lack of regularly flowing in that gift, the Scriptures do regard such a person as a prophet. I think in general, this teaching of an "office" prophet vs. "gifted" person who prophecies has simply been falsely introduced by those whom might as well be considered as part of the modern-day "professional prophet gild" who go around holding all their "prophetic conferences" and the like. For as long as they are an "office" prophet, and you are simply one who uses the "gift" of prophecy, you will continue to buy their books, tapes, and go to their conferences. There are many however, who have innocently picked up this teaching though. I almost bought into it once, and had formulated my thoughts on what a "office" prophet was.