Does training up a child always work out in the end?

*This Q is appealing to each and every of the 35,000+ individual denominations of Christianity, and even those non-denominational sects who perhaps glibly adhere to biblical principles.* Q. If every word of scripture is true, trustworthy, and inspired, (2Tim 3:16) why does Proverbs say this when this didn't work out for even God himself? Pro 22:6 ESV >Train up a child in the way he should go; even when he is old **he will not depart from it.** And yet... Isa 1:2-4 NLT >**2** Listen, O heavens! Pay attention, earth! This is what the LORD says: "**The children I raised and cared for have rebelled against me.** **3** Even an ox knows its owner, and a donkey recognizes its master's care--but Israel doesn't know its master. My people don't recognize my care for them." **4** Oh, what a sinful nation they are--loaded down with a burden of guilt. **They are evil people, corrupt children who have rejected the LORD.** They have despised the Holy One of Israel and turned their backs on him. This isn't even an isolated incident, it was a recurring theme throughout the Bible: Eze 20:17-18, 21 NLT >**17** Nevertheless, I took pity on them and held back from destroying them in the wilderness. **18** "Then I warned their children not to follow in their parents' footsteps, defiling themselves with their idols. > >**21** "**But their children, too, rebelled against me**. They refused to keep my decrees and follow my regulations, even though obedience would have given them life. And they also violated my Sabbath days. So again I threatened to pour out my fury on them in the wilderness.* Are godly parents really expected to experience this promise from Proverbs with their own children, when God couldn't even keep his own children on the straight and narrow? And if you are one of those who simply write it off as a "general" rule, not to be applied to all godly parents, yet, wouldn't it—at the very least—be applied to GOD himself as the ultimate Parent? I am looking for those with adept scriptural perception as to *how and why* a godly parent—one who pleases God— would not receive this promise of seeing their children endure to the end in faith. Thank you. *I was expecting more people to use actual scripture passages about rearing children correctly or parent/child relationships with logical interpretations to answer this. Instead, I seem to be getting criticism for taking Biblical promises too seriously.*