Dear Tom,
In the case of visions I believe that would be a delusion. Here's my text: "Seventy ‘sevens’ are decreed for your people and your holy city to finish transgression, to put an end to sin, to atone for wickedness, to bring in everlasting righteousness, to seal up vision and prophecy (NASB, HCS, NIV)... after 62 weeks the Messiah will be cut off...(Dan. 9:24-6)." There is no article, neither “this” nor “the” before the word "vision" or the word "prophesy." It does not refer to any particular prophet, prophesy, or vision. It is comprehensive and general. Literally (in Hebrew) it says “prophets” are sealed, so not merely prophesy; but the calling of prophets is sealed. When something is sealed it is because it is completed or finished. So sealed in the sense of stopped. If prophesy has not stopped then the atonement is not complete. If atonement for sins is complete then so is prophesy. If the sin problem has been completely dealt with once and for all then prophesy and visions are also finished. The time of fulfillment comes out in the first century around the time that the book of Revelation was received by the Church. Without prophets there can be no prophesy or vision, so inspired speech or revelation ended in the first-century. That there will be two prophets at the time of the end (Rev. 11:3) does not contradict this since they may be symbolic referring to the Old and New Testaments. Joel chapter two presents no problem either since both sons and daughters prophesied during the apostolic age. After 400 years of silence during the period between the Old and New Testaments, the floodgates were opened again in the first century, then ceased towards the end of the first century just as predicted. Scripture indicates that alleged verbal messages from God may come from mental delusions (Jer. 23:16, 25-26) or from one's own spirit (Ez. 13:3-10) or from the devil (2 Cor. 11:14) or possibly from an over sensitive conscience (Rom. 14:1-2, 5, 14; 1 Cor. 8:4-8, 10:23-31). Of course medical and emotional issues may also be present. The bottom line is that folks today who are claiming to hear the voice of God apart from Scripture are guided by their own thoughts as opposed to the Holy Spirit. They simply reproduce the thoughts and emotions natural to their own minds. What they hear belongs to the sphere of worldly interests and human speculation their own desires and hopes.