Names 19 to 27 draw their first letter from "lifnei machaneh Yisrael," "before the camp of Israel"; their second from "vayaer et halaylah velo," "it lit up the night, and one did not come near," still read backwards; their third from "vayolekh Hashem et," "the Lord drove" the sea. Names 22 to 25 take their third letter, one by one, from the four letters of the Name of the Lord written in that verse: Yod for ייי, Heh for מלה, Vav for חהו, Heh for נתה.
19. לוו (Lamed, Vav, Vav). Psalm 40:2: "I hoped, I hoped in the Lord; He inclined to me and heard my cry."
20. פהל (Peh, Heh, Lamed). Psalm 119:108: "Accept, Lord, the freewill offerings of my mouth, and teach me Your judgments."
21. נלך (Nun, Lamed, Kaf). Psalm 18:50: "Therefore I will thank You among the nations, Lord, and sing to Your name."
22. ייי (Yod, Yod, Yod). Psalm 147:11: "The Lord favors those who fear Him, those who hope for His kindness."
23. מלה (Mem, Lamed, Heh). Psalm 118:24: "This is the day the Lord has made; let us rejoice and be glad in it."
24. חהו (Chet, Heh, Vav). Psalm 95:6: "Come, let us bow down and kneel, let us bend the knee before the Lord our Maker."
25. נתה (Nun, Tav, Heh). Psalm 34:5: "I sought the Lord and He answered me; from all my fears He delivered me."
26. האא (Heh, Alef, Alef). Psalm 97:1: "The Lord reigns: let the earth exult, let the many islands rejoice."
27. ירת (Yod, Resh, Tav). Psalm 140:2: "Rescue me, Lord, from the evil man; preserve me from the violent man."
The verse of name 23 is the one sung in Hallel: "This is the day the Lord has made." Sha'arei Tziyon does not comment on the verses one by one; it gives them to be said, in order, as a single prayer. Name 26, האא, receives "The Lord reigns," the verse that opens Psalm 97.