Leavening Agency

There is a certain irony
In how Pesach is often done
That makes a brittle mockery
Of when our people had to run.
They seized the moment, so it's said,
To flee with what they had at hand:
A yet unrisen load of bread
Whose yeast had not had time to stand.
To celebrate this blessed flight
We now refrain from yeast and flour
But to replace, and make doughs light,
Sit beating eggs for hour on hour
Which, had they had the time to do,
I think the bread had risen too.