The main reason my wife Margaret and I sent our children to our local Christian school was a conviction that Scripture directs Christian parents to give their children a Bible- based education whenever they have opportunity to do so. One of the biblical principles which we found very persuasive was that a child's education should be positive and truthful.
Sometimes parents think that a secular environment will “strengthen” their children by forcing them to stand up for their own beliefs. But God’s Word does not endorse that viewpoint. It does not say, “Give a child 12 years of training in the way he should not go, and he will be made strong by it.” Instead, God tells us,
“Train up a child in the way he should go; even when he is old he will not depart from it” (Prov. 22:6).
I know of no verse of Scripture that tells me that secular training will “strengthen” Christian children. It may callous them so they view sin as more “normal.” It may harden them so they care more about the things of the world and less about God. It may desensitize them so they are more comfortable living in the midst of repeated sin against their Lord. But it will not strengthen them as Christian men and women: “Train up a child in the way he should go” (Prov. 22:6).
Excerpt from "Biblical Reasons for Sending Children to Christian School"
