Many United Church of Christ congregations follow a common lectionary for their Sunday worship. The lectionary is a series of readings from the Hebrew Bible and New Testament arrananged across three years.
A good place to find all the lectionary readings over the three-year period is this site hosted by the Vanderbilt Divinity Library:
The Revised Common Lectionary
The United Church of Christ has a site called SAMUEL that offers the lectionary readings, reflections on them and links to other resources.