English: “With a strong hand” — this is the pestilence. “And with an outstretched arm” — this is the sword. “And with great awe” — this is the revelation of the Shechinah. “And with signs” — this is the staff. “And with wonders” — this is the blood.
In Sifrei: Each element of the classic Exodus formula is given a concrete referent drawn from the plagues and the departure. The declaration is thereby a compressed review of the mighty acts themselves.
Type of Learning
Custom (phrase-by-phrase expansion).
What Is Learned
The five terms of the Exodus description each point to a specific dimension of the redemption (plague, force, revelation, staff, blood).