Is it not? Think about it.
When an individual apostatizes (leaves the faith) one of two things has happened. Either this is temporary and God by his grace will bring him back. Or this is genuine and his previous profession was a sham. Consider:
1 John 2:19 They went out from us, but they were not of us; for if they had been of us, they would have continued with us. But they went out, that it might become plain that they all are not of us.
Philippians 1:6 (NKJV) being confident of this very thing, that He who has begun a good work in you will complete it until the day of Jesus Christ;Just because we are born of him does not guarantee that we will never wander, fail, or fall. But it does guarantee that we will not fall finally if we genuinely belong to him.
So how are we to pray for those who have once made a profession and have now fallen away from it? How are we to know whether or not their profession was genuine? Well, we can't know, not until the end. However, when an individual disavows his profession he should be taken at his word and treated as an unbeliever. How, then, are we to treat unbelievers? We treat them with love, compassion, and truthfulness. How do we pray for them? We pray that God will bring them to repentance and faith, for that is the greatest need that they have.
That is also our need.
We tend to think of salvation in terms of conversion. "I was saved on such and such a day and it happened like this . . ." we would say. If someone were to ask us what one must do to be saved we would tell them one must repent and believe. But repentance and faith are not tools used in conversion and then laid aside. Repentance and faith are daily attributes of the Christian's life. As Christians we are always repenting and believing. Repentance is the state in which we live and belief is the state in which we live. So when we see an individual away from God, away from a state of repentance and faith, we pray that God will bring them to this state whether they have ever made a profession or not.
So the prayer for the wayward Christian is the same as the prayer for the unbeliever, because in practice at least, they are both unbelievers in need of repentance.
It's the same prayer: "Father, take this individual and bring him to the place in his life where he repents of his sin and turns to Christ in faith determined to follow Christ every day till the end of his days."
That prayer is pleasing to God and will work for anyone, regardless of what we think we may know about his spiritual condition. In fact, you could feel free to pray that prayer for me anytime you wanted. As the hymn-writer once penned:
Prone to wander, Lord, I feel it
Prone to leave the God I love.
Take my heart, Lord, take and seal it
Seal it for thy courts above.
Philippians 1:19 for I know that through your prayers and the help of the Spirit of Jesus Christ this will turn out for my deliverance,Who knows who shall be delivered through your prayers? Or mine?