Rattigan350, though the WT claims the word 'prophet' can merely mean someone who speaks for God by explaining the Bible, they are incorrect. At the very minimum the word 'prophet' (in the biblical sense) means someone who claims that God (or some other supernatural being) gave them the message they are speaking. All of the ones in the Bible which are called prophets are ones who claim that God gave them the message to them directly (or through an angel [such as in the book of Daniel] and/or through Christ [such as in the book of Revelation] - they are not merely explaining the words attributed to God in the scriptures.
The apostle Paul claimed to foretell the future. For example, he says that at the presence (or coming) of Christ those Christians who are dead will rise first and then those who are living, and that together they will meet the Lord in the air. Those specifics are not in the Hebrew Scriptures nor in the gospels.
He also clamed that his gospel (he wrote the words "my gospel") was given to him by the Lord and by so doing he claimed to be acting as a prophet for the Lord (whether Yahweh and/or Jesus). See Romans 2:16; 16:25; II Timothy 2:8. He clams to have received a revelation from the Lord Jesus Christ himself - see Galatians 1:12 (KJV) where he says "by the revelation of Jesus Christ". Note that the NIV says ".. from Jesus Christ." That verse in the NASB (Updated) says "For I neither received it from man, nor was I taught it, but I received it through a revelation of Jesus Christ." By saying I neither received it from man, that includes not receiving it from scriptures penned by a man (or by men). If he received it from the scriptures or even from a living human prophet, at best he would be receiving it secondhand. But insists he received it firsthand from a being in heaven (whether God or Christ)!
The following are excerpts from Galatians chapter 1 [NASB (Updated)].
. 8But even if we, or an angel from heaven, should preach to you a gospel contrary to what we have preached to you, he is to be accursed! 9As we have said before, so I say again now, if any man is preaching to you a gospel contrary to what you received, he is to be accursed!
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11For I would have you know, brethren, that the gospel which was preached by me is not according to man. 12For I neither received it from man, nor was I taught it, but I received it through a revelation of Jesus Christ.
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15But when God, who had set me apart even from my mother’s womb and called me through His grace, was pleased 16to reveal His Son in me so that I might preach Him among the Gentiles ...
20(Now in what I am writing to you, I assure you before God that I am not lying.) "