The great prophets had an irresistible inner compulsion to deliver a message which they had received, and the message and the commission were parts of the same spiritual experience (Hos. 1:2; Isa. 6:9f.; Jer. 1:7, 9; Ezek. 2:8f.). Pedersen has gone so far as to say that in this encounter with God “the sum and substance of the prophet’s mission is concentrated in one first pregnant.