From Ajith Fernando’s commentary on Acts:

“W.E.Sangster (Power in Preaching) reports on the description that a powerful Afro-American preacher gave on how he prepared his messages, which may give us a key to now our preaching can have fervency. He said that he `read himself full’, `thought himself clear’ and `prayed himself hot’. Study, reflection and prayer are three keys to fervency, to having knowledge on fire.”