From right to left is written כפר Kaph, Pei, Reish, these are pronounced Kaphar which means “expiation”; that is to say, to die in oneself and to make supreme sacrifices in order to expiate or to pay our karmic debts. The blood (fire) of the Lamb of God expiates the sins of the world.
Expiate (כפר kaphar) thy people Israel, whom Thou hast saved, O יהוה, and let not innocent blood suffer in the midst of Thy people Israel; and let the blood atoned (כפר kaphar) them. – Deuteronomy 21: 8