Prophet, Not Orator
And I have put My words in your mouth; I have covered you with the shadow of My hand, that I may plant the heavens, lay the foundations of the earth, and say to Zion, “You are My people.” —Isaiah 51:16
The Christian minister, as someone has pointed out, is a descendant not of the Greek orator but of the Hebrew prophet.
The differences between the orator and the prophet are many and radical, the chief being that the orator speaks for himself while the prophet speaks for God. The orator originates his message and is responsible to himself for its content. The prophet originates nothing but delivers the message he has received from God who alone is responsible for it, the prophet being responsible to God for its delivery only. The prophet must hear the message clearly and deliver it faithfully, and that is indeed a grave responsibility; but it is to God alone, not to men.