Just for extra knowledge, yesterday 25 Sep is the Day of
Atonement.
Day of Atonement
26 The LORD said to Moses, 27 "The tenth day of this seventh month
is the Day of Atonement. Hold a sacred assembly and deny
yourselves, [1] and present an offering made to the LORD by fire.
28 Do no work on that day, because it is the Day of Atonement, when
atonement is made for you before the LORD your God.
Leviticus 23:26-28

The blood of the slaughtered lamb was sprinkled on the cover of the
mercy seat of the ark of covenant. The blood shed was to atone for
the sins of the people of Israel - a foreshadow of the coming Lamb
of God who is going to take away the sins of the whole world.
Jesus Christ came to shed His blood for us, so that we may have
redemption-the forgiveness of sins. He paid the atonement sacrifice
for us all.