Strong H3724A כֹּפֶר kôpher · ransom

Exodus

1. Exodus 21:30
   If there be laid on him a sum of money, then he shall give for the ransom of his life whatsoever is laid upon him.
2. Exodus 30:12
   When thou takest the sum of the children of Israel after their number, then shall they give every man a ransom for his soul unto the Lord, when thou numberest them; that there be no plague among them, when thou numberest them.