βWhen Jesus was teaching Paul, was he seeing Him, or how did he learn exactly?β
Paul answers this question when he wrote, βI will come to visions and revelations of the Lordβ (2 Cor. 12:1). We know that βrevelationsβ are theΒ revealingΒ of things that were keptΒ secret, for Paul says he received βtheΒ revelationΒ of the mystery, which was keptΒ secretβ (Rom. 16:25). Similarly, βThe Revelation of Jesus Christβ (Rev. 1:1) is a book that reveals βthe wrath of the Lambβ (Rev. 6:16) that was kept secret in the βmeekβ way the Lord lived on earth (Matt. 11:29; 21:5).
TheΒ writer of Revelation wrote, βI Johnβ¦am yourβ¦companion in tribulationβ¦and in the kingdomβ (Rev. 1:9). Neither the tribulation nor the kingdom that John went on to describe had yet begun, but he was the βcompanionβ of his readers in both those things, for he was with them βin the Spiritβ (Rev. 1:10) in a virtual reality sort of way. That is, the Lord gave him a realistic vision of the future and told him to write down what he saw (Rev. 1:11,19).
In the same way, Paul says the Lord revealed the mystery to him by revelation (Gal. 1:12) and said that He wouldΒ continueΒ to reveal it inΒ moreΒ βvisionsβ (2 Cor. 12:1). He then went on toΒ describe one of those visions (2 Cor. 12:2-4), one that seemed so real he couldnβt tell if he was βin the body, or out of the bodyβ when it happened (2 Cor. 12:3).
But we know that this is how the Lord revealed the mystery to Paul, for he says that in that vision he βheard unspeakable words, which it is not lawful for a man to utterβ (2 Cor. 12:4). Those were words that had to do with the mystery, words of graceΒ that werenβt lawful to speakΒ under the law, such as the reversal of the diet laws of Leviticus 11 in 1 Timothy 4:4,5. source