On the day He was betrayed and crucified, the Lord explained to His disciples how they would “hear” and obey His commands after His resurrection. He told them that He would come back to them as the Counselor, the indwelling Spirit of truth who would “guide” them into all truth, even revealing the future to them, and then He gave them the great promise recorded in scripture as John 14:12-14.
"Truly, truly, I say to you, he who believes in Me, the works that I do, he will do also; and greater works than these he will do; because I go to the Father. Whatever you ask in My name, that will I do, so that the Father may be glorified in the Son. If you ask Me anything in My name, I will do it. John 14:12-14 NASB
This amazing promise has been explained away through the ages by those who are spiritually impoverished as they seek an excuse for their failure to produce the miraculous works of the Lord.
But the promise remains. He that believes in Jesus Christ will do the “works” of Jesus Christ in the world and whatever they ask in His name will be done, IF they "hear and obey" the voice of the Spirit, our counselor, and the voice of the Lord.