Leviticus 23:27

“And this shall be a perpetual statute for you: in the seventh month, on the tenth day of the month, you shall humble your souls and not do any work, whether the native or the sojourner who sojourns among you;

“And you shall not do any work on this same day, for it is a day of atonement, to make atonement on your behalf before Yahweh your God.

‘You shall then sound a ram’s horn abroad on the tenth day of the seventh month; on the day of atonement you shall sound a horn all through your land.

then make an offering by fire to Yahweh, a burnt offering or a sacrifice to fulfill a special vow, or as a freewill offering or in your appointed times, to make a soothing aroma to Yahweh, from the herd or from the flock.

‘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 it shall be the prince’s part to provide the burnt offerings, the grain offerings, and the drink offerings, at the feasts, on the new moons, and on the sabbaths, at all the appointed times of the house of Israel; he shall provide the sin offering, the grain offering, the burnt offering, and the peace offerings, to make atonement for the house of Israel.”

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