MINISTERING THE SPIRIT
"And be not drunk with wine, wherein is excess but be filled with the Spirit." Ephesians 5:18 (KJV)
When we minister the Gospel, we're to minister the Spirit; otherwise, our preaching and teaching will be mere words, and empty. Preaching the Gospel isn't about how many scriptures you can quote it's about communicating those scriptures with, and by the Holy Ghost. This is what we're called to do as ministers of the Gospel. Anybody can sermonise or give great lectures and speeches, but without the Spirit, they'll have no lasting impact.
We've been sent by the Spirit, and anointed of God; therefore, we can only carry out His work by the power of the Spirit. This is one of the reasons we're required to spend quality time fellowshipping the Spirit praying in the Spirit, to be filled with the Spirit. That way, your message and your preaching wouldn't be persuasive words of man’s wisdom, but in the demonstration of the Spirit and of power.