Hi, Anne —
Hi thanks for your question.
In order for a Baptism to be considered valid, it
must be done In the Name of the Father, Son, and Holy Spirit. This is known as the Trinitarian formula.
Some denominations (in particular, a sect of
Pentecostals) baptize in the name of Jesus
only. They do so, based on a heretical understanding
of the Trinity which is almost akin to modalism.
From New Advent:
Modalism
(Monarchianism) - The so-called Dynamic Monarchians
were actually a form of adoptionism.
Monarchianism, properly speaking, refers to the
Modalists. They deny the Trinity,
asserting that there is only one Divine Person,
who appears in three different roles. Noetians
and Sabellians were two schools of Modalism.
These Baptisms are not valid in the eyes of the
Church.
John
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