When I open air preach, speak with people, pass out tracts, and write letters I trust in this doctrine and that God draws the elect, and grant them faith and repentance enabling them to believe. So this is why I am not discouraged when I get few replies or conversions, as another reason is because according to Romans 1 people suppress the truth in these last days, but I evangelize solely for the glory of God. The Bible is quite clear that God is the one that does the saving, and salvation is a supernatural work (Jon 2:9; John 1:12-13; 3:5-8; 6:44; Eph 2:4-5; Tit 3:5). A great verse to illustrate this was given by Luke in Acts 16:14 "One of those listening was a woman from the city of Thyatira named Lydia, a dealer in purple cloth. She was a worshiper of God. The Lord opened her heart to respond to Paul’s message"(NIV). All Paul did was preach the gospel and let the Holy Spirit do the rest. My authority is strictly the Bible and all books that I read are filtered through the scripture. It is not Calvinism, it is the scripture. Reformed theology best represents the scripture, but its not without its problems (eschatology) for one.