The words from stanza 1, “…she is his new creation by water and the Word” parallel Heidelberg Catechism, Lord’s Day 21, Question and Answer 54, testifying that Christ “…through his Spirit and Word…gathers, protects and preserves for himself a community chosen for eternal life and united in true faith.”
Stanza 2 combines two powerful truths: the church is “elect” and the church is from “every nation.” The Canons of Dort I, 7 verifies both of these by teaching that “election is God’s unchangeable purpose by which he…chose in Christ to salvation a definite number of particular people out of the entire human race.”
Stanzas 3 and 4 acknowledge that the church will often suffer while she tries to be obedient. The Belhar Confession, Section 5 says that God’s people ought not to be surprised at this; it is to be expected.
Stanza 4 also speaks of the church “waiting the consummation of peace forevermore.” The Apostles Creed professes that we believe in “the resurrection of the body and the life everlasting.” Heidelberg Catechism, Lord’s Day 22, Questions and Answers 57-58 expand on this profession: “…after this life I will have perfect blessedness such as no eye has seen, no ear has heard, no human heart has ever imagined: a blessedness in which to praise God forevermore.”