Acts 27:9

And when much time was spent, and the voyage was now dangerous, because the Fast was now already gone by, Paul admonished them,

Leviticus 23:27-29

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

Numbers 29:7

And on the tenth day of this seventh month ye shall have a holy convocation; and ye shall afflict your souls: ye shall do no manner of work;

Leviticus 16:29-31

And it shall be a statute for ever unto you: in the seventh month, on the tenth day of the month, ye shall afflict your souls, and shall do no manner of work, the home-born, or the stranger that sojourneth among you:

Treasury of Scripture Knowledge

Summary

Now when much time was spent, and when sailing was now dangerous, because the fast was now already past, Paul admonished them,

Bible References

The fast

Leviticus 16:29
And it shall be a statute for ever unto you: in the seventh month, on the tenth day of the month, ye shall afflict your souls, and shall do no manner of work, the home-born, or the stranger that sojourneth among you:
Numbers 29:7
And on the tenth day of this seventh month ye shall have a holy convocation; and ye shall afflict your souls: ye shall do no manner of work;

American Standard Version Public Domain