Those who trust in the Lord are like Mount Zion
that cannot be moved, enduring forever.
Jerusalem, hills enfold it,
and the Lord enfolds His people now and forever.
and the Frog says:
Blessed is the name of His glorious kingdom for ever and ever.
Mishna Yoma 3.8
(Song of the Frog, Perek Shirah)
God said, “Let the waters bring forth swarms of living creatures,
and birds that fly above the earth across the expanse of the sky.”
For you shall observe this as an institution for all time, for you and your descendents. And when you enter the land that the Lord will give you, as He has promised, you shall observe this rite. And when your children ask you, “What do you mean by this rite?” you shall say “It is the Passover sacrifice to the Lord, because He passed over the houses of the Israelites in Egypt when He smote the Egyptians, but saved our houses.” . . . . And all the Israelites did so; as the Lord had commanded Moses and Aaron, so they did. That very day the Lord freed the Israelites from the land of Egypt, troop by troop.
~Exodus 12.24-27, 50-51