«Most assuredly, 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 My Father. And whatever you ask in My name, that I will do, that the Father may be glorified in the Son» (John, 14:12-13).
When Jesus Himself says ‘most assuredly’, it means He wants us to pay attention. These two verses are connected. Jesus says that we can do the works that Jesus did and even more, if we pray. Jesus tried to tell His disciples that He has been given all authority in heaven and on earth and that He will represent them in heaven, because He will be sitting with Him on the heavenly throne. Jesus told His disciples that they should ask in His name and that He would do what they ask so that His Father would be glorified.