And thou shalt say. The second person refers to the Israelites, who returned home.

כי Though. Comp. כי חטאתי לך רפאה נפשי Heal my soul, although I have sinned against thee (Ps. 41:5)

הנה אל ישועתי The God of my salvation is with me,¹ and therefore אבטח I will dwell in safety.²

footnotes: ¹ A. V. God is my salvation. ² A. V. I trust.

The explanation of יה, the half of the name of God, will be found in the Book of Psalms,³ and of זמרת in the Pentateuch (Exod. 15:2)

footnotes: ³ In his Commentary on Ps. 118:17, I. E. explains וזמרת, but not the meaning of יה. He intended perhaps to do it on Ps. 68:5, to which verse he refers also in his commentary on Isaiah 26:4. It is, however, explained, Ex. 3:15, and Sefer Hashem, 100:8.

And you will draw water. By this figure the prophet indicates that they will rejoice exceedingly, as the thirsty rejoices when he draws water.

And you shall say one to the other.

קראו Call aloud.

עלילותיו His deeds.

זמרו Sing. Comp. זמרת the best fruit (Gen. 43:11). Lit. Give the best and choicest thing.

מודעת Known. Participle Hophal.

גאות Excellent thing. Feminine, as seen by the affix ⁴.ת

footnotes: ⁴ It agrees therefore with the feminine מודעת זאת this is known.

Cry out, etc. It is right, that thou, O Zion, shouldst lift up thy voice, for God is in thy midst.