If you read
Acts 2:37-43 carefully you’ll discover that
Acts 2:38 cannot be an instance of the use of the actual baptismal formula, because this isn’t a baptismal verse. What I mean by this is that the actual baptisms of the 3,000 take place in verse 41, the point which I am trying to make is that
Acts 2:38 is only a command to go and to get baptised. The baptismal formula is used in verse 41 and not in verse 38, and yet God regarded the actual baptismal formula of such little importance that verse 41 does not record the words spoken over the candidates for baptism. The word name (onoma) at
Acts 2:38 implies the authority of the Messiah in whom Peter is commanding these Jews to trust and to repent, so that they might be saved. So the Bible should not be used as a ‘Harry Potter book of spells’ where words are said to possess magical powers which must be recited absolutely exactly for the ‘power to work.’