Are you aware of the doctrine of presumptive regeneration? If not, I encourage you to learn it and learn how to respond to it.
In early 2020 my family and I listened to the sermon below by Joe Morecraft, a man for whom I have great respect and admiration. I am very thankful for his ministry. He is in my top ten list of living preachers. Even so, he is just a man. I believe this part of his teaching is incorrect.
The Internet home of Tony Rocco Hepp 