From the early Church Fathers to now.
“Went in after the Israelite into the brothel house, and thrust both of them through together, to wit, the man and the woman in the genital parts. And the scourge ceased from the children of Israel:”
“If Phinehas by his zeal in slaying the evildoer appeased the wrath of God, shall not Jesus, who slew no other but "gave himself a ransom for all," take away God's wrath against humanity?”
“Now if we have been conformed to his death, sin henceforth in us is surely a corpse, pierced through by the javelin of baptism, as that fornicator was thrust through by the zealous Phinehas.”
“Slaughter has brought about righteousness, and mercy has been a cause of condemnation more than slaughter, because the latter has been according to the mind of God, but the former has been forbidden. It was reckoned to Phinehas for righteousness that he pierced to death the woman who committed fornication, together with the fornicator. But Samuel, that saint of God, although he wept and mourned and entreated for whole nights, could not rescue Saul from the condemnation which God issued against him, because he saved, contrary to the design of God, the king of the alien tribes whom he ought to have slain.”
The in-app commentary runs from the Fathers to the early-modern record, then stops — that's where the public-domain sources end, not where the reading does. For the modern reading, follow the sources directly.