What does the Bible say about seeking signs?

In Matthew 12:39, Jesus rebukes those who demand a sign, declaring that an 'evil and adulterous generation seeketh after a sign.' This highlights a spiritual condition where individuals are not content with God’s word and seek miraculous phenomena instead. The demand for signs reflects a lack of faith in God's revealed truth, which should be sufficient for believers. Likewise, Jeremiah 23:16 warns against false prophets who lead people away from the truth with their own visions and dreams, emphasizing that true prophets must speak God's word faithfully.