Question:

Is it right for a brother to get up and preach through emotion instead of the Holy Spirit?

Read Acts 7 where Stephen preached to the leaders of the Jews.  Much of his sermon consisted of a review of the Old Testament history of the children of Israel.  Now just try to imagine Stephen as he gets to the punch line: “Ye stiff necked and uncircumcised in heart and ears, ye do always resist the Holy Ghost: as your fathers did, so do ye.  Which of the prophets have not your fathers persecuted? and they have slain them which showed before of the coming of the Just One, of whom ye have been now the betrayers and murderers” (7:51,52).  Do you think Stephen mumbled these words in a monotone, or did he shout them with great emotion?  Twice we are told, once before his speech and once afterwards, that Stephen was “full of the Holy Ghost” (6:5 and 7:55).  So preaching God’s Word with emotion is not necessarily inconsistent with preaching by the power of the Holy Spirit.  What needs to be guarded against is getting up and preaching our own thoughts, our own experiences, our own ideas, rather than the Word of God.  All the emotion in the world cannot compensate for preaching apart from the power of the Holy Spirit.