Spirit AND Truth

Many people attempt to have all of the answers. It is as if they are saying, "follow me," instead of the Bible. Yet the bible clearly says that for now, "we know in part."
A wise man admits to not having all of the answers. Therefore he directs others to God. The best he can do is to give his own testimony about how the Holy Spirit built into him a truth he saw in God's word. This would end up being the, "word of his testimony."
We overcome by the "blood of the Lamb, the word of our testimony, and loving not our lives even unto death." It is the "word of our testimony" that God uses as a vessel to contain the "power of God unto salvation."

Many legalistc people do not have a testimony. They simply demand blind obedience to God's word without understanding or knowledge. They have no testimony because they have no immediate relationship with the Holy Spirit. The closeset they can get to God is "Truth" Yet God says that there is a people who will "worship Him in Spirit AND in Truth."