The Bible tells us in the book of John chapter 14, verse 12 through 14 the following:
John 14: 12-14
12 Truly, truly, I say to you, he who believes in me, the works that I do, he will do also; and even greater will do, because I go to the Father.
13 And whatever you ask the Father in my name, I will do so that the Father may be glorified in the Son.
14 If you ask anything in my name, I will do it. John 14: 12-14 King James Version (NIV)
Believing is something that has no limit and the Lord tells us in these verses that he who believes in Him will do the same works He did and even greater.
On one occasion the Lord also tells him in the book of Mark 9:23: "And Jesus said: If you can believe this, to him who believes everything is possible." (New American Standard (NASB) Copyright © 1986)
So there are no barriers in someone who believes in Jesus Christ because Jesus himself testified that he who believes in him will do greater and greater things than he did.
All we ask with faith to the Lord will be done, God granted us this great privilege, but it is not just asking is to believe that what I am asking will be a reality in my life.
We put the doubts and the barriers so that we cannot see the glory of God in what we ask, but today is a good day to believe and say Lord help me to believe you because I need my miracle, I need to see your glory in my life, you increase My faith.
¡God answers the prayer of faith!.