My take

Sheker Hachain; this is referring to the generation of Moshe and Yehoshuah. Vehevel Hayofi; the generation of Chizkia and Rebbe Yehuda Berabi Eloey. Yiras Hashem He Tishalol; this is the generation of the gas chambers, where men and women tried to do Torah and mitzvos in the concentration camps, and they made a Passover Sader in thin air, without food or matzos. They made believe they were breaking the matzos. That! you never had before. (Sanhedrin, beginning of 20)