Saturday, I was doing some yardwork when the Jehovah's Witnesses stopped by. I always drop everything and chat with them (Mormons also) when they approach me. Now before you condemn me as giving ear to heresy, please listen to my reasoning: First, you must realize that as a homeschooling mom, I spend a lot of time with my children, and don't have a large sphere of influence outside the home. So, when the mission field comes knocking on my door (literally), I view it as a God-given opportunity to share my faith. Secondly, I believe these misguided people are not the enemy, but people deceived by the enemy and in need of a Savior. When they find out that you are a "Bible Believer", they want to talk about eschatology and the end of the world. Now, the J.W.'s have been predicting the end of the world for almost a hundred years now. They also have a problem with God being a Trinity, an issue which we should never yield. And they have their own weird translation of the Bible, obviously to support their weird theology. Apparently, door-knocking is one of the requirements in their faith, because they all seem to feel the need to do it to be a "good christian".
I try to explain to them that salvation comes through Christ alone, through faith alone. It is a gift from God, not something anyone could earn. He gives it freely to all that have been chosen to receive it. Do you believe that Jesus is God? that when He died on the cross He took the punishment for your sins? Do you believe that He then rose from the dead? If you do, tell Him. He wants to have a relationship with you.