Why is the hymn "blessed be the tie that binds" significant in the play our town by thornton wilder?

A choir sings the hymn “Blessed Be the Tie That Binds” in the background three different times throughout the play. In part, the repetition of the song emphasizes Wilder’s general notion of stability and tradition. However, the Christian hymn primarily embodies Wilder’s belief that the love between human beings is divine in nature. The “tie” in the song’s lyrics refers to both the tie between humans and God and the ties among humans themselves.