Brothers. Unfortunately many Calvinists and Reformed are not active in witnessing which not only saddens me, but more importantly saddens the Lord. Brothers do you not believe in the great commission or do I need to quote all 4 mentions of it in all 4 gospels? The master book of evangelism called the Book of Acts outlines what the disciples and Apostles did, and they were very active in preaching, teaching, reasoning, explaining, persuading, and pleading. Do you not believe me or do I need to quote a number of scriptures to make my point? My point is to be active in witnessing and reach as many as you can. Sadly we live in a day of Privatization, and practical humanism/atheism as many live as if God does not exist outside of the church. They often make excuses and say that their life somehow is more valid of a witness than the Holy Scriptures and in so saying such a thing they deny the sufficiency of the scripture (Heb 4:12, Jer 23:29, Eph 6:17). So I challenge all Calvinists/Reformed to be out witnessing as often as possible and don't buy into the lies of the contemporary church. Nope follow the master book on evangelism called Acts. Do not follow the thousands of books on evangelism, but follow the master book called the Bible, and or any book that takes you to that book in detail. Recently I read one by Reisinger whom no doubt follows the outline and theology of Acts very closely.