We were wary. We guarded our thoughts so we wouldn’t waste the money God gave us on gambling. However, there is no need to know everything about sin. We knew that people gambled. But, we don’t know a lot of things that go on behind the scenes. We didn’t have to. The Lord had us in there because someone’s heart had been prepared, so when we gave him a tract with the “Four Spiritual Laws” on it, he got saved.
Making a study of sin can be dangerous. Yes, it’s good to know things, and guard your heart and mind. However, looking in depth into it can cause you to be pulled in that direction. Look at what happened when David kept looking at Bathsheeba.