Thomas Aquinas, on Ps 11:6

“By reason of the misery of the needy, and the groans of the poor, now will I arise, saith the Lord. I win set him in safety; I will deal confidently in his regard.”

“Then he sets forth the certainty of the promise: "the words of the Lord are pure words" -- not adulterated by admixture of anything foreign; or purified of superfluity; or incorrupt, because one is called chaste before experience, but continent after. Not vain, but firm. Mt. 24: "Heaven and earth shall pass away, but my words shall not pass away." Second, they are full of truth; hence, "silver tested by fire." Silver is white without stain, resonant without pretense, fragrant without corruption. "Tested by the earth," that is, from the earth; for the Greeks lack an ablative case. This is a translation from the Greek: "purified sevenfold," that is, perfectly.”

Imported from an open dataset — not yet checked against the printed edition.