“Jesus taught in a radical new way. He begins his teachings with the phrase ‘Amen I say to you,’ which is to say, ‘I swear in advance to the truthfulness of what I’m about to say.’ This was absolutely revolutionary.” “How so?” I asked. He replied, “In Judaism you needed the testimony of two witnesses, so witness A could witness the truth of witness B and vice versa. But Jesus witnesses to the truth of his own sayings. Instead of basing his teaching on the authority of others, he speaks on his own authority.