Honestly, come and listen. Find out that the texts relate to each other and to the liturgical season - Christmastide, Eastertide, etc.
In addition, the homily, when done correctly, ought to knit the readings together and explore and explain the Faith. (Not all homilists are created equal, some do a wonderful job, others less so.)
What most protestant brethren fail to understand is the nature of the Mass, it is a prayer service, yes - it is also much more, it is the Sacrifice at Calvary made Real all over again. Our Lord becomes Present, Body and Blood, in the highest form of Worship. In most protestant forms, the highest form of worship is prayer, in the Holy Mass the Ultimate Sacrifice is made real again and again and those of us in a State of Grace partake of His Flesh and Blood as He commanded.
You have *no* idea who you’re dealing with, regarding matters of liturgy, exegesis and theology.