"An evil and adulterous generation seeketh after a sign; and there shall no sign be given to it, but the sign of the prophet Jonas: For as Jonas was three days and three nights in the whale's belly; so shall the Son of man be three days and three nights in the heart of the earth" (Matthew 12:39-40).
If there was ever "an evil and adulterous generation," it is surely this present one and, once again, there is a widespread seeking after signs (same word in the Greek as "miracles"). The almost explosive rise of the so-called New Age movement has produced an amazing interest in all forms of occultism and supernatural phenomena: astrology, channeling, ESP, near-death experiences, UFO's, meditation, and mysticism of many strange varieties.
Even in Christian circles, there is an unhealthy interest in new revelations and other supernatural signs. The Lord Jesus, however, rebuked those who wanted special signs before receiving Him. "Except ye see signs and wonders, ye will not believe" (John 4:48). He has already given us the greatest of all signs -- His bodily resurrection from the dead, the best-evidenced fact of all history -- and this should suffice, as He told the scribes and Pharisees in our text.
In fact, there is a real danger in seeking such signs and wonders, for many of these things -- while perhaps supernatural -- are not from God. "For there shall arise false Christs, and false prophets, and shall show great signs and wonders; insomuch that, if it were possible, they shall deceive the very elect" (Matthew 24:24).
Unlike the first generation of Christians, we now have the complete written Word of God, both Old and New Testaments, and it is sufficient for every need of every believer until Christ returns, "whereunto ye do well that ye take heed, as unto a light that shineth in a dark place, until the day dawn, and the day star arise in your hearts" (II Peter 1:19). HMM