Midrash su Salmi 128:5

... “May the Lord bless you from Zion…” (Psalms 128:5) This comes to teach that the Holy One blesses them from the place that He blesses Israel. And from where do we learn that the blessings come out from Zion? As it says “As the dew of Hermon which runs down on the mountains of Zion…” (Psalms 133:3) and it says “May the Lord bless you from Zion, and see the good of Jerusalem all the days of your life.” (Psalms 128:5) May you merit to see the good of Jerusalem in the time to come, “And may you see children to your children, peace upon Israel.” (Psalms 128:6)

The Holy One, blessed be He, declared unto Israel: In this world you fear sins, but in the world-to-come, where there is no evil inclination, you will tremble with joy over the benefactions reserved for you, as is said: Afterward shall the children of Israel return, and seek the Lord their God, and David their king, and shall come trembling unto the Lord and to His goodness in the end of days (Hos. 3:5). What is the meaning of His goodness? It refers to the Holy Temple, as it is said: That goodly hill country and the Lebanon (Deut. 3:25). The blessing comes from Zion, as is said: The Lord shall bless thee out of Zion, and thou shalt see the goodness of Jerusalem (Ps. 128:5). Dew is blessed from Zion, as is said: Like the dew of Herman, that cometh down the mountains of Zion (ibid. 133:3). Help comes from Zion, as it is said: Send forth thy help from the sanctuary, and support thee out of Zion (ibid. 20:3). Salvation comes from Zion, as it is said: Oh, that the salvation of Israel were come out of Zion (ibid. 14:7). The Holy One, blessed be He, said: In the world-to-come I shall bless you out of Zion, as it is said: The Lord blessed thee out of Zion; even He that made heaven and earth (ibid. 134:3). And I shall bless Zion, as is said: The Lord bless thee, O habitation of righteousness, O holy mountain (Jer. 31:22). Amen.

(Numb. 7:2:) “Now the princes of Israel drew near (to make an offering).” You find that when Moses proclaimed and said (in Exod. 35:5), “Take from among you an offering [for the Lord],” what did the princes do?¹⁰⁶Cf. Numb. R. 12:16. They said, “Moses did not know [enough] to tell us that the Tabernacle was being made.” What did they do? They did not give a freewill offering. They said, “These people are making the Tabernacle, and now he is telling us to give a freewill offering?” The Holy One, blessed be He, said, “By your lives, you should know that I do not need you (princes).” What is written there (in Exod. 36:3)? “And they (i.e., the Children of Israel) still brought freewill offerings unto him in the morning, in the morning.”¹⁰⁷See above, Exod. 7:3, and the notes there. R. Johanan said, “For two mornings they brought all the supplies (mela'khah) for the Tabernacle, and they were more than enough, as stated (in Exod. 36:7), ‘For they had sufficient supplies (mela'khah), more than enough for all the work (mela'khah) to make it.’” And it is written (in Exod. 39:43), “When Moses saw all the work (mela'khah) […]; then Moses blessed them.”¹⁰⁸Above, 2:20. And with what blessing did he bless them? He said to them, “May the Divine Presence dwell in the work of your hands.” In this world Moses has blessed them; but in the world to come, the Holy One, blessed be He, will bless them, as stated (in Ps. 128:5–6), “The Lord will bless¹⁰⁹Normally the translation would read, MAY THE LORD BLESS, but reading the verb as a simple future indicates that this blessing is reserved for the world to come. you from Zion; may you see the prosperity of Jerusalem…!”