Most thank-you poems thank someone for a present. Cowper's "Praise for Faith" goes a step further and thanks God for the ability to say thank you at all. Its central idea is that faith is not something a person achieves by effort or good judgement. It is itself a gift. The first stanza names the greatest gift as "my Redeemer's blood", richer than anything "heaven itself" holds. The second adds that the power to receive that gift comes "from the same hand". Without it, "that gift had been in vain", like a present left unopened.
The poem is built like a hymn, and the form suits its message. Each stanza alternates eight-syllable and six-syllable lines in a steady iambic beat, the pattern often called common metre, and rhymes ABAB. This is the rhythm of congregational singing, easy to learn and easy to carry in the head. The vocabulary is just as plain, and much of it is monosyllabic: "hand", "blood", "eye", "cure", "owe". That plainness keeps the doctrine from sounding like a lecture. The poem sounds like someone speaking honestly, not showing off.
The imagery comes mainly from two areas: giving and sickness. The money-and-gifts vocabulary runs through the whole poem: "gifts", "bestows", "Giver", "gain", "richer", "owe", "all". By the last stanza the speaker has done the sums and found a debt that cannot be repaid: "To Thee our all we owe." The medical imagery arrives in stanza three, where unbelieving hearts are "weak, as a distemper'd eye", an eye so diseased that it "shut[s] out the view of Thee". "Distemper'd" means disordered or unwell, and the picture is striking. The problem is not that God is hidden, but that the eye is too sick to see. The next stanza keeps the thought going with "misery" and "cure", and even the word "case" in stanza two may carry a faint medical sense, as in a patient's case. That is an inference, but the later imagery supports it.
The fourth stanza holds the poem's sharpest moment. People are "Blind to the merits of Thy Son", suffer for it, and then "fly that Hand from which alone / We could expect a cure." The verb "fly" here means to flee. The speaker is describing a patient who runs from the only doctor who can help. It is an uncomfortable admission, and it works because "we" includes the speaker. The poem never points at other people's blindness.
The hand is the poem's quiet recurring image. It begins as "Thine hand" handing out gifts, returns as "the same hand" giving faith, and finally appears with a capital as "that Hand" that heals. One hand does all the giving, and the repetition makes the point that everything comes from a single source.
The last stanza closes in a loop. "The precious Saviour, and the power / That makes Him precious too" repeats "precious" and ties Christ to the faith that lets us value him. Even the speaker's appreciation, the poem says, is something God provides. So the praise ends by praising the thing that makes praise possible. There is also a small imperfection in the sound. "More" and "power" rhyme (if "power" is read as one syllable, as the metre requires), but "owe" and "too" only half-chime. Whether intended or not, the near-miss leaves the final line slightly open, as if the speaker has more to say than the form can hold. Indeed, "would praise Thee more" admits that the praise falls short.
The poem is significant because it makes a hard theological idea feel natural. Gratitude is something most readers know, and Cowper pushes it to its logical limit: if everything is a gift, then even the thankfulness is a gift. Believer or not, a student can see how tightly the poem is argued. In twenty short lines it moves from a claim, through a diagnosis, to a confession, and ends with praise that knows it is incomplete.