Bible Drill: Get the inexpensive balls from Walmart, write the books of the Bible on one and the verse prompts & references (separately) on the other. The kids bounce three ball back and forth naming the verse and the other says it.
Above all else, guard your heart, for everything you do flows from it. What is in our hearts comes out through our words and actions. We must guard our hearts from evil so that we can abstain from doing evil.