The gospels aren't reliable at all as it's origin is black so we don't know, we can tease what is likely to have happened based on what we know about the time. People complain about the criterion of embarrassment but it's the best tool we have at our disposal for studying christ. So we can reasonably assert Jesus was baptized since it raises theological problems that undermine Christian doctrine, so Christians wouldn't have made it up if it didn't actually happen in reality. Likewise the gospels say on the day of the crucifixion the dead of Jerusalem rose from their graves and visited many of the living. #coons