In the readings, the table of God’s word is prepared for the faithful, and the riches of the Bible are opened to them.61Cf. Second Vatican Ecumenical Council, Constitution on the Sacred Liturgy, Sacrosanctum Concilium, no. 51. Hence, it is preferable to maintain the arrangement of the biblical readings, by which light is shed on the unity of both Testaments and of salvation history. Moreover, it is unlawful to substitute other, non-biblical texts for the readings and responsorial Psalm, which contain the word of God.62Cf. John Paul II, Apostolic Letter Vicesimus quintus annus, 4 December 1988, no. 13: AAS 81 (1989), p. 910.
In the celebration of the Mass with a congregation, the readings are always proclaimed from the ambo.
By tradition, the function of proclaiming the readings is ministerial, not presidential. The readings, therefore, should be proclaimed by a lector, and the Gospel by a deacon or, in his absence, a priest other than the celebrant. If, however, a deacon or another priest is not present, the priest celebrant himself should read the Gospel. Further, if another suitable lector is also not present, then the priest celebrant should also proclaim the other readings. After each reading, whoever reads gives the acclamation, to which the gathered people reply, honoring the word of God that they have received in faith and with grateful hearts.
The reading of the Gospel is the high point of the Liturgy of the Word. The Liturgy itself teaches that great reverence is to be shown to it by setting it off from the other readings with special marks of honor: whether on the part of the minister appointed to proclaim it, who prepares himself by a blessing or prayer; or on the part of the faithful, who stand as they listen to it being read and through their acclamations acknowledge and confess Christ present and speaking to them; or by the very marks of reverence that are given to the Book of the Gospels.