Various simple Biblical coloring book pages actually celebrate the life of Jesus Christ and the apostles pages show Christ in different ages of - adolescent, youth, adult and his ending days. The parables pages are good coloring pages to relate with the stories of Bible.
You can find hundreds of such useful coloring pages with biblical themes, alphabetical games and more variations for preschool kids. However mind that you would need good configuration of system and good printer quality with perfect cartridge for fine print quality. Also make sure that you command the fine print or best print for your printer while printing the biblical pages for best results and perfect line drawing.