He who speaks from himself seeks his own glory; but He who is seeking the glory of the One who sent Him, He is true, and there is no unrighteousness in Him. John 7:18
Determining whether a preacher is false or not is easy to do. Are they trying to glorify themselves or are they glorifying Jesus Christ? We see a lot of false teachings in Christianity today, the prosperity gospel is a classic example. Mega Church preachers making millions of dollars , promoting themselves and books, did Jesus do any of this? Jesus was preparing us for Gods Kingdom not to live as millionaires in this world. We are called to be separated of this world not become a part of it!
So Jesus answered them and said, “My teaching is not Mine, but His who sent Me. John 7:16
Jesus is the Living Word, the Torah that became Flesh! Jesus teachings are not contradictory to the Old Testament, Jesus is the Old Testament. Jesus brought clarification and revelation to existing teachings of prophets that many never understood. These were not new teachings, they were the same God of Abraham, Isaac, and Jacob
In the beginning was the Word, and the Word was with God, and the Word was God. John 1:1
The Living Word is Jesus Christ, the Word became Flesh (John 1:14) Seek the glory of God our Father and you will speak truth of the Holy Spirit. When we seek our own glory or gain, then we fail Gods glory and seek to glorify ourselves
Preach the truth of Jesus Christ, Preach the Living Word of God, not our will but Gods will Amen!