"Agnus Dei" is also the popular name for the anthem beginning with these words, which is said to have been introduced into the missal by Pope Sergius I (687-701). Based upon John i. 29, the Latin form is Agnus Dei, qui tollis peccata mundi, miserere nobis (Lamb of God, who takes away the sins of the world, have mercy on us). In the celebration of the Mass it is repeated three times before the communion, and it is also appended to many of the litanies. By the judgment in the case of Read and others v. The Bishop of Lincoln it was decided in 1890 that the singing of the "Agnus Dei" in English by the choir during the administration of the Holy Communion, provided that the reception of the elements be not delayed till its conclusion, is not illegal in the Church of England.