Acts 2 Holy Spirit
Few things could be more surprising to human beings than suddenly speaking in a language they had not learned. When the Holy Spirit came, the disciples immediately experienced the first fulfillment of Jesus’ prophetic word to them: “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” (John 14:12).
Some have trouble with the “greater works” part of this promise. They ask how anyone could do greater works than Jesus Christ.
the power by which Jesus did His works was the Holy Spirit, and that the power through which Jesus’ disciples did their works is the same Holy Spirit, who is God Himself and who can do works of any magnitude at any time He wishes. If we relied on human power to do our works, none of us could even approach any of Jesus’ works. But our works can be done with superhuman power, provided by God Himself.