The Count is Right
You will need:

A contestant panel, a list of Bible words, and how many times they are found in the Bible.  Example: the word "Esther" is found in the Bible 53 times.  (Use a concordance to find out.  Also, throw in some trick words like Bible, trinity, or rapture, which are not found in the Bible.)

Have 4 kids come up to the contestant panel, and give them one of the words found on your list. Whoever comes closest to guessing the right amount of times that word is found in the Bible without going over, then gets a chance to play one of the Carnival Games.  Example: "Esther" is found in the Bible 53 times, so whoever comes closest to 53, without going over wins.