Who did Jesus call the generation of vipers?

Jesus referred to the religious leaders and Pharisees of His time as a "generation of vipers" in the Gospels, particularly in Matthew 12:34 and Matthew 23:33. This term was used to criticize them for their hypocrisy, false teachings, and lack of genuine faith, highlighting their role in misleading the people. By using this phrase, Jesus emphasized the moral corruption and spiritual danger posed by their actions.