The function of proclaiming the readings is by tradition ministerial. Therefore the readings are to be read by a reader (lector), but the Gospel by the Deacon or Priest. 

 

The lector is instituted to proclaim the readings from Sacred Scripture, with the exception of the Gospel. He may also announce the intentions for the Universal Prayer and, in the absence of a psalmist, recite the Psalm between the readings.

In the celebration of the Mass with the people, the readings are always read from the ambo.

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After each reading, whoever reads it pronounces the acclamation, and by means of the reply the assembled people give honor to the Word of God that they have received in faith and with gratitude. (GIRM, nos. 57-59)