Publisher Desc. Come, Christians, Join to Sing! is an anthem for Christ the King Sunday, Ascension, and general occasions. Suggested corresponding lectionary readings include 2 Samuel 5:1-5, Psalm 95, John 12:9-19, and Colossians 1:11-20. One basic homiletical theme is issuing the call to the community of the faithful: come and worship Jesus Christ , your King!