Yes he will be back.
I can't disagree with you that we should pray for him.
But I admit to having an aversion to people preaching what they themselves do not practice. This crushes the sincere who would believe them. People give up crushed, and walk away from the faith.
If you really think about it. What would be the result of anyone striving to obey each and every literal command of Christ under a law of righteousness? They would be crushed and walk away from the faith if they are sincere.
That is the result of people who believe the message of people who do not practice what they preach.
My overriding concern is not for those who demand of others what they do not demand of themselves, but those they crush, who in simplicity of trust, believe these people themselves actually practice what they preach. They then give up with the faith, feeling worthless, believing they cannot be good enough to be a Christian.
It is a pity those who reel off the letter, as many do, have no consideration for those they may crush along the way.
It is not so hard to understand why Jesus reserved his harshest criticism for such people