There are numerous examples in the Bible of people who knew what they believed in and pursued it wholeheartedly despite the opinions of those around them. Noah would be a prime example - he built the ark at a time when the people didn’t even know what rain was. They mocked him and his family for building such a monstrosity of a boat. But Noah knew what he believed and he believed - even though he had never seen rain - that God was going to make it rain - a lot.
Abraham left his family and security to move to a land he didn’t know much about - but he believed God’s promises to make a great nation through him. I could easily continue adding to this list. The point is these men did great things by pursuing wholeheartedly the things they believed in.
There are also many examples in our world of people who understood the importance of standing up for something. Martin Luther King, Jr believed in equality wholeheartedly and stood up to a society which would have preferred for him to go away. Mother Theresa is probably the greatest example of unconditional love our society has ever had. No matter what people thought or how they treated her she moved forward and loved and did what she could to help ease suffering and pain. She believed in unconditional love.
When you challenge and explore - you learn and grow. Sometimes I think we are afraid to allow our kids to question their faith because we have a limited understanding of what we believe and therefore are, on some levels, afraid it cannot hold up to scrutiny. I promise you - it can! And the deeper young people look into the Bible and strive to understand the what and why of it all - the more deeply they will be challenged to think it through. It is good to wrestle with the Truths in God’s Word - we are promised it is sharper than any two-edged sword and will never return void. I believe that and I think the critical thinking process is significantly important in helping people to become grounded in what they believe. Without it we end up with a society of individuals who say they are Christians and have a vague connection with the Bible and its stories, but never have an answer for those who question and wish to raise doubts.
If you believe God is real - think deeply about it. Why do you believe that? Because someone else told you to? Because of what the Bible says about Him? What, specifically, in the Bible convinces you? Maybe things that have happened in your life convicted you? What happened? Why did that help you to believe God is real? Maybe it is something somebody told you? Something you read? Can you express to other people WHY you believe what you believe? The apostle Paul’s example has held so much influence over me and my life. He told his story again and again - personalizing why he believe what he believed. He had an answer. He had opinions. He had support for his opinions. He helped a lot of people find God and begin to experience their own life-changes.
It is so important to think through these things and to understand why we believe what we believe. When difficult times or challenges come, and they always will, we will have solid footing to stand on and a durable faith.