James 5:16

Therefore, confess your sins to one another and pray for one another, that you may be healed. The prayer of a righteous person has great power as it is working.

Jeremiah 33:3

Call to me and I will answer you, and will tell you great and hidden things that you have not known.

1 John 5:14

And this is the confidence that we have toward him, that if we ask anything according to his will he hears us.