Abraham figures prominently in Catholic liturgy. Of all the names of the Old Testament used in the liturgies of Catholic Churches, a special prominence accrues to those of Abel, Melchisedech, and Abraham through their association with the idea of sacrifice and their employment in this connection in the most solemn part of the Canon of the Mass in the Roman rite. The inclusion in the Litany for the Dying of only two (Abel and Abraham) out of all the great names of the Old Testament must give these a special prominence, but of these two, again, the name of Abraham occurs so often and in such a variety of connections, as to make his position in the liturgy one of very decided pre-eminence.