In the communion liturgy of the Reformed Episcopal Church, the passage Matthew 21:28 is the first of the passages of "comfortable words" spoken by the minister to the congregation after the general confession (the others are John 3:16, I Timothy I:15 and I John 2:1-2), and while not intended use in that point of the service (the music is both too long and the scripture text is paraphrased and extended), I wrote the motet very much with that situation -- and condition -- in mind.