When all that generation had been gathered to their fathers, another generation arose after them who did not know the Lord nor the work which He had done for Israel. (Judges 2:10, NKJV)
It has been said that God has no grandchildren. That is, every generation must hear, learn and come to know the Lord for itself. The faith of parents does not transfer to children by osmosis or by proximity. It happens through deliberate training that is instructive and corrective (Eph. 6:4). Israel was to teach the word of the Lord diligently to their children in order to equip them to be faithful and blessed (Deut. 6:7-13; 11:18-23). Children live what they learn. The secular influences around them are teaching them many things that are against the will and word of God. Your children need consistent teaching from God’s word to help them develop their own faith, so they can choose to serve Jesus and His gospel. And, they need to see you being faithful to Christ and His gospel. Speaking truth to them, but not living the truth before them, will hinder them from choosing to know God and His salvation.