English: “And they shall dash” — might one think a single toss suffices? The verse says “around.” If “around,” might one think to encircle it like a thread? The verse says “and they shall dash.”
In Sifra: Classic two-phrase limit. Vezarku alone might mean one toss; saviv alone might mean a continuous ribbon. Together they force dashed applications that result in blood around the altar’s sides — not one toss, not a thread-line.
Type of Learning
Two phrases that limit each other — neither single toss nor continuous ribbon.
What Is Learned
Zerikah of the olah blood is neither a single toss nor a continuous ribbon around the altar, but dashing toward the sides so as to place blood around. Each word blocks the extreme reading of the other.