Midrash su Zaccaria 12:3

“…and the people shall go out and gather what is needed for the day…” (Exodus 16:4) This is what is written “Blessed is the Lord; every day…” (Psalms 68:20) The Holy One said to Israel: with the measure that a man measures with, so he is measured. I gave you the Torah in order that you be occupied with it every day, as it says “Fortunate is the man who listens to me to watch by my doors day by day…” (Proverbs 8:34) And so too “Yet they seek Me daily…” (Isaiah 58:2) By your lives, I will satisfy you with food from the heavens every day, as it says “…and the people shall go out and gather what is needed for the day, so that I can test them, whether or not they will follow My teaching.” (Exodus 16:4) Furthermore, I will bless you every day, as it says “Blessed is the Lord; every day God lavishes upon us…” (Psalms 68:20) When you do My will I will call you “…borne from birth…” (Isaiah 46:3) and I will fill up (ma’amis) for you the cup of salvation in the merit of the Holy Temple, which is called a ‘stone of burden’ (maamasa), as it says “And it shall come to pass on that day that I will make Jerusalem a stone of burden for all peoples…” (Zechariah 12:3)

... “…and to him will be a gathering of peoples.” (Genesis 49:10) This refers to Jerusalem, which in the future will blunt the teeth of the nations of the world, as it says “And it shall come to pass on that day that I will make Jerusalem a stone of burden for all peoples…” (Zechariah 12:3)