The radio promos start with someone telling Mary that the baby in her womb would grow to become "the greatest of all men". It's then that I turn off the radio and become saddened for all who hear this and are guided by it. He didn't don flesh to become "great". He came to do his Father's will and show us what a life totally surrendered to it looks like.
The world doesn't embrace David Jeremiah, John MacArthur or Franklin Graham the way it embraces Joel Osteen. That alone should tell you all you need to know.
I assume from context (I won't watch the program) that that's supposed to be the Archangel Gabriel. But that's not what Gabriel actually said. Calling Jesus "the greatest of all men" is more heretical even than Arianism. Jesus is God incarnate, the second person of the Blessed Trinity. To make him anything less isn't Christianity, sorry.