As of 2015, a good place to find Bible-related coloring books is Amazon.com, which lists coloring books that have Jesus and other Bible characters and notable moments from the book. Some websites also list individual coloring pages that can be printed out for free.
One book listed on Amazon.com is called My Bible Coloring Book, which contains pictures of Jesus as well as other figures from the Bible. This site also lists The Beginner's Bible Super-Duper, Might, Jumbo Coloring Book, which contains hundreds of pages of Bible-related coloring pages that also contain Jesus and many other characters from the Bible. These books come at prices that fall under the $10, making them very affordable for those wishing to purchase a Bible-related coloring book for themselves or someone they know.
A website called Coloring.ws lists hundreds of coloring pages that can be printed out and colored individually. These pages are all listed for free, but the process of printing each page individually may not be inviting. The website lists pictures of Jesus as an adult as well as pictures of the nativity. The pictures found on Coloring.ws tend to be more cartoon-like and lower in quality, so the trade-off is clear.