Hello Tommy. I share your disappointment as I have a 46 year old “child” who once served the Lord and has wandered off. I have been taught that the Proverbs are wise sayings that in general hold true - not guarantees. I think the Lord is saying it is very likely that if we teach our children about the Lord eventually they will come to serve him. I know I made mistakes as a parent but I do know my kids will never forget how we experienced God in our home. I just keep praying. Don’t give up!  I also like this proverb in the Living bible 11:21 “You can be very sure that the evil man will not go unpunished forever. And you can also be very sure that God will rescue the children of the godly.”  Keep living a godly life and believe Jesus will rescue our children!