Although normally administered in conjunction with baptism, in some cases chrismation alone may be used to receive converts to Orthodoxy through the exercise of "economia". Although practice in this regard varies, in general, if a convert comes to Orthodoxy from another Christian confession and has previously undergone a rite of baptism in the Trinitarian Formula ("in the Name of the Father, and of the Son, and of the Holy Spirit"), he or she may be received into the Orthodox Church through the sacrament of chrismation, after which receiving the Holy Eucharist. If, however, a convert comes from a Christian confession that baptizes in the name of Jesus (such as Oneness Pentecostals), from one which practices an invalid, non-Trinitarian baptism (such as Mormons or Jehovah's Witnesses) or from one that does not practice baptism at all (such as Quakers or The Salvation Army), baptism is a prerequisite for chrismation—an initiate must always be validly baptized into the death of Jesus in the name of the Holy Trinity before any further holy mysteries or sacraments of initiation can be administered. The use of "economia" is at the discretion of, and subject to the guidelines imposed by, the local bishop. Converts from non-Christian religions also need to be baptized before chrismation.