First of all the teaching comes from New Testament scripture not Old Today that type of dress is typical for Oneness Pentecostalism or Holiness which is already mentioned in the present subsection Also there are some groups that teach and dress that way that arent Pentecostal And incidentally all  of those denominations above plus the Church of God Cleveland Tennessee and others came out of the Holiness movement and originally did dress that way but changed between the lates to the earlys depending the particular group