Train up a child in the way he should go; and when he is old, he will not depart from it. Proverbs 22:5-7.
Children need to know about God and his Word. We all do. What do we need to know? We need to know that God's Word is true, eternal, pure, living, perfect, inspired, without error.
It's exciting to see God's Word at work in our world and children will see this too as God's Word acts as a seed, a sword, a fire and food in people's lives ... children's and grown-ups'.