Jerome : (Verse 21) How has the faithful city become a harlot, full of judgment: justice dwelled in it but now murderers. The Hebrew word Jalin (), which the LXX translated, means slept; and it rested, and it will rest, that is, it signifies the past and future tense. Hence, both Aquila and Theodotio say it as if in the future. But the Prophet marvels in a prophetic spirit that the city which was once faithful, or a refuge for the faithful, has suddenly become a harlot. Which indeed can be understood even in the time of Isaiah: but it is more fully referred to the passion of Christ, when all turned away, together became useless (Ps. XIII, 3). And although in Hebrew there is no Zion: yet the Seventy, in order to make the meaning more evident, added it. But Zion is a mountain on which the city of Jerusalem was founded: which, after being captured by David, was called the city of David. Nor do I doubt that there were holy men in it when it had the tabernacle of God, and afterwards the Temple was built: when Nathan and Gad prophesied: and over the choirs (which are more fully described in the book of Chronicles) Asaph, and Idithun, and Eman, and the sons of Kore were appointed, so that religion might gradually transition from the sacrifices of victims to the praises of the Lord (I Chr. XXV). Therefore, the city of the faithful, which was once full of judgment and justice, now is full of murderers: those who killed the prophets and the Lord Himself, the Savior. But Jerusalem's fornication, how she spread her legs to everyone passing by, is depicted by the name Oolibah in the book of Ezekiel, which means 'my tent is in her,' which is now expressed in different words as 'justice has rested in her.' For 'justice' in Hebrew is written as Sedec (), which sounds more like 'just' than 'justice,' so that we may understand that the Lord dwelled in her first, as it is said elsewhere: 'But what has the just one done?' The Lord is in his holy temple: the Lord's throne is in heaven. (Psalms 11:4) We can interpret all these things allegorically in reference to the soul of a once holy man, in which God's righteousness resided before he sinned, and in which demonic murderers dwelled as guests of God. — Commentary on Isaiah