How do we cause other people to stumble? The answer is very simple. We cause other people to stumble by not caring about them.
Jesus said, "If your hand or foot causes you to sin, cut it off and throw it away. It's better to enter eternal life with only one hand or one foot than to be thrown into eternal fire with both of your hands and feet" (Matthew 18:8). He basically was saying that we should get rid of anything in our lives that would be a bad example. If there is something in our lives that would cause us to stumble, then we need to deal with it, because it could cause someone else to stumble as well.
I think of couples who decide to get divorced and say things like, "Oh, don't worry about the kids. They are resilient." That divorce will hurt them—trust me. I know from the personal experience of being a child of divorce and seeing my mother married and divorced seven times. I know what that is like, and I know what it is like for a child. Parents are to be an example to their children. Be something they can emulate.
Younger believers are watching what we do as well. Sometimes we will take our so-called liberties and flaunt them, and then we cause younger believers to stumble in their faith. But the apostle Paul tells us in Romans 14:21, "It is better not to eat meat or drink wine or do anything else if it might cause another believer to stumble."
You might think, Well, that is their problem.
No, not really. It is your
problem. It is our
problem. We don't live and die to ourselves. What we do affects other people. So be a good example.