But when John saw many of the Pharisees and Sadducees coming to be baptized, he said to them, “You vipers' brood! Who warned you to run away from the coming judgment?
I will make sure you and your children, and the woman and her children, are enemies. One of her children will crush your head, and you will strike his heel.”
Who can I give this warning to? Who's going to listen to me? Can't you see that they refuse to listen? They can't hear what I'm saying. See how offensive the Lord's message is to them. They don't like it at all.
The Pharisee stood up and prayed to himself, ‘God, I thank you that I am not like other people—cheats, criminals, adulterers—or even like this tax collector.
Your father is the devil, and you love to follow your father's evil desires. He was a murderer from the beginning. He never stood for the truth, because there is no truth in him. When he lies he reveals his true character, for he's a liar and the father of lies.
But they were opposed by some of the believers who belonged to the Pharisee faction. They said, “These converts have to be circumcised, and instructed to observe the law of Moses.”
They have known me for a long time and can verify, if they choose to, that I have followed the religious school that observes our faith in the strictest way—I lived as a Pharisee.
God's hostility is revealed from heaven against those who are godless and who are not morally right, those who suppress the truth through the evil that they do.
Noah trusted God, and was warned by him about things that had never happened before. Because Noah paid serious attention to what God said, he constructed an ark to save his family. By trusting God, Noah showed that the world was wrong, and received the reward of being set right by God.
So by these two actions that can't be changed, and since it's impossible for God to lie, we can have total confidence, having run for safety to take hold of the hope God presented to us.
This is how God's children and the devil's children can be distinguished: all those who don't do what's right don't belong to God, nor do those who don't love their fellow Christians.