For all who will be teaching classes in VBS, and for those assisting in various ways, and for all of us who will be praying for the children involved, consider this helpful essay by Jim Elliff on "Childhood Conversion." VBS is a great opportunity to proclaim the Good News to young people, but we must be careful not to push for "decisions" or to grant immediate assurance of salvation to children who have professed faith.
We should tell kids the truth about God, sin, Jesus Christ, and faith and repentance. Then we should simply wait and pray and watch to see what God does in their hearts. When a child professes faith in Christ, we should encourage them and continue to teach and instruct them. But we should not hastily assure them that they are saved, for that has the potential of doing great harm later in the child's life. He or she may not bear any genuine spiritual fruit but still look back to that prayer that was prayed in VBS as an assurance of sins forgiven and life everlasting.
Therefore, I commend Jim Elliff's response, which is applicable in the home and in the ministries of the church. He writes, "Our response to our child’s expressions that he is now converted should always be positive, encouraging and sincere. We should help the child see the basis upon which he can have assurance of new life rather than take it upon ourselves to offer him an immediate assurance not ours to give. Say something like this, “I’m thrilled that you are repenting and trusting in Christ. More than anything we want to know that God has really changed your life. The way we will know is if you continue repenting and trusting and if you act like a true Christian—that is, you have a new heart that loves to obey God. Sometimes we do not know that until we are in a place where it really costs us to be a Christian. Maybe you will not know it until you face the choice between your friends and Christ. Let’s see what God does. We’ll watch and pray about it. As questions come up, we’ll talk.”
You can read the article in its entirety here.