There are Bible’s and Bible Story Books for all ages. They wonderfully help to nurture children spiritually. When our children were very young, I found a children’s Bible with questions for the children to answer at the end of each story. It was titled, The Bible in Pictures for Little Eyes by Kenneth N. Taylor. I have given many of these books as baby gifts.
As children mature, update their Bibles and give your teenagers devotional books.
Parenting Guide: Raising Children with Your Heavenly Father