Moroni 4:1–3

The manner of their elders and priests administering the flesh and blood of Christ unto the church; and they administered it according to the commandments of Christ; wherefore we know the manner to be true; and the elder or priest did minister it—And they did kneel down with the church, and pray to the Father in the name of Christ, saying:

“O God, the Eternal Father, we ask thee,
in the name of thy Son, Jesus Christ,
To bless and sanctify this bread
to the souls of all those who partake of it,
That they may eat in remembrance
of the body of thy Son,
and witness unto thee,
O God, the Eternal Father,
That they are willing to
take upon them the name of thy Son,
and always remember him,
and keep his commandments
which he hath given them,
That they may always have his Spirit to be with them.

From section: Logistics of Church Rites, Ordinances, and Procedures

From page: Moroni Finalizes the Book of Mormon