There is not a better evangelist in the world than the Holy Spirit.
God commands us to be filled with the Spirit, and if we are not filled, it is because we are living beneath our privileges.
If we are full of pride and conceit and ambition and self-seeking and pleasure and the world, there is no room for the Spirit of God, and I believe many a man is praying to God to fill him when he is full already with something else.
When the Spirit came to Moses, the plagues came upon Egypt, and he had power to destroy men's lives; when the Spirit came upon Elijah, fire came down from heaven; when the Spirit came upon Gideon, no man could stand before him; and when it came upon Joshua, he moved around the city of Jericho and the whole city fell into his hands; but when the Spirit came upon the Son of Man, He gave His life; He healed the broken-hearted.
One thing I have noticed in studying the Word of God, and that is, when a man is filled with the Spirit he deals largely with the Word of God, whereas the man who is filled with his own Ideas refers rarely to the Word of God. He gets along without it, and you seldom see it mentioned in his discourses.
Unless the Spirit of God is with us, we cannot expect that our prayers will be answered.
There is not a better evangelist in the world than the Holy Spirit.