[Lectors] exercise a genuine liturgical function. They ought, therefore, to discharge their office with the sincere piety and decorum demanded by so exalted a ministry and rightly expected of them by God’s people. Consequently they must all be imbued with the spirit of the liturgy … and must be trained to perform their function in a correct and orderly manner.
The Sacred Scriptures, above all in their liturgical proclamation, are the source of life and strength … Love of the Scriptures is therefore a force reinvigorating and renewing the entire people of God.
Introduction to the Lectionary #47
When the Scriptures are read in the Church, God himself speaks to His people, and Christ, present in His own Word, proclaims the Gospel. Therefore, all must listen with reverence to the readings from God’s word, for they make up an element of greatest importance in the Liturgy.
General Instruction of the Roman Missal #29