Anyone can say the right words. Cowper's poem starts from that uncomfortable fact and spends six stanzas on it: real faith is measured not by how well someone talks about God but by how they live. The title promises a contrast between a living and a dead faith, yet neither adjective appears in the poem. Cowper lets us work it out from two kinds of people. On one side are the "humble minds and hearts sincere", and on the other is the "loud professor", a word that here means someone who professes belief, not a teacher. The first group is quiet and the second is noisy, and the poem sides firmly with the quiet.
The form fits the message. The poem is built from quatrains in steady eight-syllable lines, with a regular ABAB rhyme: praise and says, sincere and ear. The rhymes are plain and mostly single-syllable (day/pray, light/sight), so the poem reads like something meant to be sung or learned by heart. It is a quiet irony that a poem attacking "swelling words and fluent speech" is itself so unshowy. Cowper practises the plainness he recommends.
The middle stanzas show how carefully the argument is built. The second stanza piles up action verbs: "walk", "mark", "wage", "watch", "pray". The alliteration in "wage the warfare, watch, and pray" gives the line the rhythm of a drill. Faith here is effort and discipline, closer to a soldier's duty than to a feeling. The third stanza shifts into the language of money: the Lord's sacrifice "cost", it was meant to "purchase pardon", and the grateful soul should "return" something. Offering "words alone" in exchange looks like a very cheap payment. The repeated "alone" is the hinge. Cowper never says words are worthless, only that they are not enough.
The fourth stanza gives the poem its one extended image: the priestly robe with "golden bells" and "rich pomegranates border'd round". It alludes to the garment of the high priest in the Old Testament. Cowper reads the design as a lesson, because the bells are sound and the pomegranates are fruit, and the robe "called for fruit as well as sound". The image is fair-minded. The bells are part of the robe, so sound is not condemned, but a robe with only bells would be incomplete. Pairing something you hear with something you could eat or plant makes the point concrete.
In the fifth stanza the tone turns sarcastic. "Easy indeed it were" to reach heaven, Cowper says, if talking were enough. Heaven becomes "a mansion in the courts above", something to be arrived at as a reward for a good speech. "Swelling" is a telling word, suggesting something puffed up with air and with nothing inside. The stanza's ending sets "faith and love" against "fluent speech", and the sentence only works if we feel how thin the second pair is beside the first.
The last stanza opens with a hard "But" and delivers the poem's sharpest turn. The phrase "free and sovereign grace" sounds like a slogan, something a confident speaker might repeat. By the final line the word "free" has become a result: grace must have "made him free". The talker who only uses the vocabulary is not free at all. This is also the only exclamation mark in the poem, so after five calm stanzas the voice finally rises.
The poem matters because of where it aims. Cowper does not attack outsiders. He speaks to people who share his faith and warns them against complacency, which makes the warning more uncomfortable. The test he offers also reaches well beyond religion, since it applies to any fine words, promises, or declared values that never turn into action. His answer, that sound without fruit is empty, is simple, and the poem's patient construction makes it hard to dismiss.