Let thy bowels also be full of charity towards all men, and to the household of faith, and let virtue garnish thy thoughts unceasingly; then shall thy confidence wax strong in the presence of God; and the doctrine of the priesthood shall distil upon thy soul as the dews from heaven. 46 The Holy Ghost shall be thy constant companion, and thy scepter an unchanging scepter of righteousness and truth; and thy dominion shall be an everlasting dominion, and without compulsory means it shall flow unto thee forever D&C 131:45-46
Late Latin testamentum in this case was a confusion of the two meanings of Greek diatheke, which meant both "covenant, dispensation" and "will, testament," and was used in the former sense in the account of the Last Supper (see testimony) but subsequently was interpreted as Christ's "last will."
What is the original Roman meaning of the word sacrament?
a soldier's oath of allegiance
In Ancient Rome, the term meant a soldier's oath of allegiance. Tertullian, a 3rd-century Christian writer, suggested that just as the soldier's oath was a sign of the beginning of a new life, so too was initiation into the Christian community through baptism and Eucharist.