[12] Indeed, the word of God is living and effective, sharper than any two-edged sword, penetrating even between soul and spirit, joints and marrow, and able to discern reflections and thoughts of the heart.
(CCC 1190) The Liturgy of the Word is an integral part of the celebration. The meaning of the celebration is expressed by the Word of God which is proclaimed and by the response of faith to it. (CCC 1184) The chair of the bishop (cathedra) or that of the the priest "should express his office of presiding over the assembly and of directing prayer" (GIRM 271). The lectern (ambo): "The dignity of the Word of God requires the church to have a suitable place for announcing his message so that the attention of the people may be easily directed to that place during the liturgy of the Word" (GIRM 272).
Reference: alchemy-and-alchemists.blogspot.com