Ashrei and the Case of the Missing Verse

רבי יוחנן מפני מה לא נאמר נו"ן באשרי מפני שיש בה מפלתן של שונאי ישראל דכתיב (עמוס ה, ב) נפלה לא תוסיף קום בתולת ישראל ... אמר רב נחמן בר יצחק אפילו הכי חזר דוד וסמכן ברוח הקדש שנא' (תהלים קמה, יד) סומך ה' לכל הנופלים:

Berakhot 4b:21-22

Rabbi Yochanan said: Why is there no נ in Ashrei? Because it would refer to the downfall of Israel, as it is written, "Fallen (נָֽפְלָה), not to rise again, is Maiden Israel" (Amos 5:2) ... Rav Nachman bar Yitzhak said: Even so, David refers to it and finds support for Israel in the Holy Spirit, as it is said, "The Lord supports all who fall (הַנֹּפְלִים)" (Psalm 145:14).

Psalm 145:13a
Faithful is the Lord in his words, and devout in all his works.
Septuagint Translation

תהילים קמה:יג1

Psalm 145:13a

God is faithful in all his words, and loving in all his deeds.

Praise the Lord, and praise his name for ever and ever.

Dead Sea Scrolls 11Q5 Psalms^a

Dead Sea Scroll 11Q5 Psalms^a, including Psalm 145.

Detail of Psalm 145 in Dead Sea Scroll 11Q5 Psalms^a highlighting verses 13-14.