Athanasius of Alexandria, on Ps 39:10

“I have declared thy justice in a great church, lo, I will not restrain my lips: O Lord, thou knowest it.”

“[At this point in the psalm] he introduces the persons of those who believed from Israel; for he confesses to God that he did not remove his mercy from it but then and now saved and supported them.”

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