The Secret of George Whitefield's Success, five points (via)...
1. Natural eloquence -- a gift from God - used by the power of God's Holy Spirit.
2. Fellowship with God -- Whitefield gives us a glimpse in his Journal of his walk with God. 'Early in the morning, at noonday, evening and midnight, nay, all day long, did the blessed Jesus visit and refresh my soul. At other times I would be overpowered with a sense of God's Infinite Majesty'.
3. Godliness -- 'Above all he was a great saint, and Wesley and others bore tribute to this during his life and his death. This was the ultimate secret of his preaching power' (Lloyd-Jones).
4. Concern for the lost and the conviction that sinners are in danger of an everlasting hell
5. Wholehearted commitment to God -- 'If ever a man burnt himself out in the service of God, it was Whitefield. He was tireless and relentless in his efforts to win souls. Throughout his life he enjoyed the presence of God in his preaching. Even on his last day in this world he preached, though he was very ill. He was a man whose sole desire was to preach Christ crucified' (Nigel Clifford, Christian Preachers, Bryntirion Press).
Read the rest of the article/short bio at Banner of Truth. Check out my George Whitefield Resources page.