When the Gospel is glossed over by lighthearted scenarios that don't mirror real life, children can be led into thinking Christianity amounts only to an untainted notion of perfectionism. The story never changes, but, in a modern context, the way we tell it does. You can provide that context for your children by simply talking about Jesus on a regular basis, by living the principles of your faith, and by praying with your children. You shall teach them diligently to your sons and shall talk of them when you sit in your house and when you walk by the way and when you lie down and when you rise up. You shall bind them as a sign on your hand and they shall be as frontals on your forehead.
Children glean an enormous amount of wisdom from listening to their parents talk.
References to the Lord and your beliefs should permeate your daily conversations. Be specific in thanking Him for His provision and care. Give Him the glory when things work out better than you'd hoped they would, and ask Him for guidance when you face big decisions. Reading from the Scriptures on a regular basis is a direct and effective way to bring about discussions concerning Christ. Bibles for children and even toddlers are available for parents who wish to begin early.