The text expresses the joy Christ's resurrection brings to believers (st. 1); that joy provides a sense of security throughout our lives (st. 2) and gives confidence even in the face of death (st. 3).
Psalter Hymnal Handbook
Easter hymns accomplish three functions: they recount the Easter narrative, proclaim our Easter hope, and celebrate our joy at Christ’s resurrection. This hymn is built on the professions of Easter truths that are expressed primarily in Heidelberg Catechism. Note especially the following:
In addition, Our Song of Hope, stanza 5 professes: “On the day of the resurrection, the tomb was empty; His disciples saw Him; death was defeated; new life had come. God’s purpose for the world was sealed.”