Resources
The most foundational teaching of the Christian faith are presented in the Big Thoughts for Little Thinkers series at a level preschool and elementary children can understand. In simple and precise language, God-centered theology is promoted, giving children a firm foundation in God's timeless truth.
Christy, the Tebow's oldest daughter, and husband Joey Allen wrote and illustrated this series of four children's books, Big Thoughts for Little Thinkers, which was published by New Leaf Press.
Here is an Amazon link for each book:

