The scripture readings for Epiphany Sunday, (January 8th) are an example of how the the lectionary ties together an Old Testament, Epistle, and Gospel reading around a common theme. In this case, the theme is God's universal call. In Isaiah 60:1-6 Jersualem hears that:
In that time (and in this) Jerusalem looked on the Nations as enemies.
In Ephesians 3:1-6 St. Paul tells us:
In the gospel (Mt. 2:1-12) we read that wise men came from the East. They recognized Jesus as a King, even though the residents of Jerusalem did not.
Those of us who reside comfortably inside a congregation need to ask ourselves this question: "Why was it that the Epiphany came to outsiders instead of the establishment?"