If one performs a miracle or prophesies and it comes to pass, should this be enough proof one is a true servant of God?
2 Kings 1:12
ESV - 12 But Elijah answered them, "If I am a man of God, let fire come down from heaven and consume you and your fifty." Then the fire of God came down from heaven and consumed him and his fifty.
For follow-up discussion and general commentary on the topic. Comments are sorted chronologically.