I recently heard the following statement expressed by a Calvinist: "I worship like a Calvinist, but minister like an Arminian." Now I am quite sure that this statement may have, at least, raised the eyebrows of the likes of Spurgeon, Whitefield, Edwards, Pink, Hodge, Sproul and many, many others who found it not incongruous to worship AND evangelize like Calvinists. The following video is the 10 minute conclusion of a debate by Dr James White of Alpha and Omega Ministries, a Calvinist. I think you will find it an extremely worthwhile 10 minutes.
Hat Tip Deutero Q