On April 15, 1914, Ewart re-baptized Glenn A. Cook, his assistant and a veteran evangelist of the Azusa Street Mission, in the name of Jesus Christ, and Cook re-baptized Ewart. This would set in motion an issue that would divide the Pentecostal movement between the Trinitarians and the "Jesus Name only", or "Oneness" believers. Afterward, they began re-baptizing thousands of Pentecostals with the shorter formula “in the name of Jesus”, claiming those baptisms performed with the citation of Matthew 28:19 were invalid, and that baptism must be performed “in the name of Jesus” (only). Additionally, those who had been baptized in the threefold titles of “Father, Son and Holy Spirit”, must renounce that baptism and be re-baptized with "the Name of Jesus" pronounced over them, before they can be regarded as biblically baptized by Oneness Pentecostals.