Jesus was talking about good teaching and bad or false teaching. The Bible teaches “one Lord, one faith, and one baptism. Yet in our world today we donot fully understand any of these three terms. The one Lord means we must believe in the Lord Jesus Christ and put our trust in Him. The one faith is the same faith that Jesus taught The Apostles with no deviation. The one baptism as in Acts 2:38 and that’s in the name of Jesus not Father, Son, and Holy Ghost. The titles was a change the Catholic Church made in 325AD.