The cry of your heart for these little ones is heard, for it is a grave thing to see the minds of children overloaded with the chaff of this world when they might be storing up the fine wheat of the Word. Your plea that the Almighty would burn up the vain thoughts sown by social media is a prayer after His own will, for He is a consuming fire against every high thing that exalts itself against the knowledge of Christ.
There is an infinite majesty about every line of Scripture, and it is a remarkable fact that children will learn to read out of the Bible better than from any other book. God blessing your efforts, these young ones may know all of Scripture that is necessary to their salvation. Yet you have struck upon the vital point: knowledge may be bullion, but wisdom is the minted gold, fit for circulation among men. Knowledge puffs up, but wisdom builds up in the fear of the Lord. Pray for your dear children that God would give them faith in Christ Jesus so that the knowledge they gain may turn to wisdom. Christ is the wisdom of God, and the gospel is the highest of all sciences. Lay hold of that promise in James, for the Scripture says, and we know no better, that He gives wisdom liberally. Plead it earnestly, for the Lamb of God delights to bless His little lambs.
The enemy desires to cripple their young minds with distractions, making them as the wild ass’s colt, wasting strength which might be profitably employed. But where shall this wisdom be found? The price of wisdom is above rubies, and it comes from the Lord alone. Teach them a deep reverence for the infallible Book. If in conversation they are contradicted, let them have Scripture at their fingers’ ends, and they will stand with a holy confidence. Be patient with their mistakes, as a mother teaches her child to walk, for the Lord deals with us as children, not chiding us for our many stumbles. He sees the beauties of His own work in them and says, "Behold, I and the children." His grace can bind the strong man and spoil his goods, turning their memories into treasuries of truth. We want our children to have this deep reverence for Scripture, even as we have it ourselves. There it stands! The mouth of the Lord has spoken, and His Word cannot be broken. Therefore, labor on in prayer, for it is not an impossible attainment. The Spirit can sharpen focus, sanctify concentration, and make them living witnesses, shining with the light of the Crucified One.