Leviticus 16:29

‘It is a perpetual statute throughout your generations in all your places of habitation: you shall not eat any fat or any blood.’”

“On exactly the tenth day of this seventh month is the day of atonement; it shall be a holy convocation for you, and you shall humble your souls and bring an offering by fire near to Yahweh.

‘Then on the tenth day of this seventh month you shall have a holy convocation, and you shall humble yourselves; you shall not do any work.

And they gathered to Mizpah and drew water and poured it out before Yahweh and fasted on that day and said there, “We have sinned against Yahweh.” And Samuel judged the sons of Israel at Mizpah.

Then I called for a fast there at the river of Ahava, that we might humble ourselves before our God to seek from Him a direct journey for us, our little ones, and all our possessions.

And when considerable time had passed and the voyage was now dangerous, since even the Fast was already over, Paul began to advise them,

but into the second, only the high priest enters once a year, not without taking blood, which he offers for himself and for the sins of the people committed in ignorance.