1 John 5:16

If any one sees his brother commit a sin, not to death, he shall ask, and he will give him life, for those who sin not to death. There is a sin to death; I say not that you should pray for it.

Acts 8:24

And Simon answered and said, Pray to the Lord for me, that none of the things which you have said may come upon me.

James 5:15

And the prayer of faith shall save the sick, and the Lord will raise him up; and if he has committed sins, they shall be forgiven him.

Treasury of Scripture Knowledge

Summary

And all the people said unto Samuel, Pray for thy servants unto the LORD thy God, that we die not: for we have added unto all our sins this evil, to ask us a king.

Bible References

Pray for thy

Acts 8:24
And Simon answered and said, Pray to the Lord for me, that none of the things which you have said may come upon me.
James 5:15
And the prayer of faith shall save the sick, and the Lord will raise him up; and if he has committed sins, they shall be forgiven him.
1 John 5:16
If any one sees his brother commit a sin, not to death, he shall ask, and he will give him life, for those who sin not to death. There is a sin to death; I say not that you should pray for it.