The document provides commentary and analysis for the Sunday liturgy readings. It summarizes the first reading from Isaiah which describes how the lands of Zebulun and Naphtali went from gloom to being glorified by God. It then summarizes the responsorial Psalm about having the Lord as one's light and salvation. The second reading summary explains that Paul urges the Corinthians to unity and not divisions, as some were saying they belonged to particular leaders instead of Christ alone.