Here’s a call to worship suitable for use on Epiphany (January 6). It comes from the Calvin Institute of Christian Worship website.
Epiphany Call to Worship
O come, let us worship the Lord
and consider what wondrous things God has done:
The Magi who study the heavens follow a guiding star!
O come, let us worship the Lord
and consider what wondrous things God has done:
The peoples who live in the shadows see a glorious light!
O come, let us worship the Lord
and consider what wondrous things God has done:
The Christ who embodies the Word unveils the hidden plan,
making us joint heirs of the promise of salvation through the gospel!
O come, let us worship the Lord,
for God has done wondrous things!