Acts 27:9

And much time being spent, and the sailing being now dangerous -- because of the fast also being already past -- Paul was admonishing,

Leviticus 23:27-29

Only -- on the tenth of this seventh month is a day of atonements; ye have a holy convocation, and ye have humbled yourselves, and have brought near a fire-offering to Jehovah;

Numbers 29:7

'And on the tenth of this seventh month a holy convocation ye have, and ye have humbled your souls; ye do no work;

Leviticus 16:29-31

And it hath been to you for a statute age-during, in the seventh month, in the tenth of the month, ye humble yourselves, and do no work -- the native, and the sojourner who is sojourning in your midst;

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 hath been to you for a statute age-during, in the seventh month, in the tenth of the month, ye humble yourselves, and do no work -- the native, and the sojourner who is sojourning in your midst;
Numbers 29:7
'And on the tenth of this seventh month a holy convocation ye have, and ye have humbled your souls; ye do no work;