'Day of Atonement' in the Bible

Also on the tenth day of this seventh month there shall be a day of atonement: it shall be an holy convocation unto you; and ye shall afflict your souls, and offer an offering made by fire unto the LORD.

And ye shall do no work in that same day: for it is a day of atonement, to make an atonement for you before the LORD your God.

Then shalt thou cause the trumpet of the jubile to sound on the tenth day of the seventh month, in the day of atonement shall ye make the trumpet sound throughout all your land.

‘On the first day of the seventh month, you shall have a holy [summoned] assembly; you shall do no laborious work. It will be for you a day of blowing the trumpets (the shophar, ram’s horn).

‘Then on the tenth day of this seventh month you shall have a holy [summoned] assembly [for the Day of Atonement]; and you shall humble yourselves; you shall not do any work.

Now much time had been lost, and navigation was dangerous, because even [the time for] the fast (Day of Atonement) was already over, so Paul began to strongly warn them,