Acts 27:9

Much time had been lost and sailing was now dangerous. Because the fast was over Paul admonished them,

Leviticus 23:27-29

The tenth day of this seventh month is a special day for the payment for sins. There will be a holy assembly. Humble yourselves, and bring Jehovah a sacrifice by fire.

Numbers 29:7

Call a holy assembly on the tenth day of the seventh month. Humble yourselves do no work.

Leviticus 16:29-31

The following regulations are to be observed for a long lasting time to come. On the tenth day of the seventh month the Israelites and the foreigners living among them must fast and must not do any work.

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
The following regulations are to be observed for a long lasting time to come. On the tenth day of the seventh month the Israelites and the foreigners living among them must fast and must not do any work.
Numbers 29:7
Call a holy assembly on the tenth day of the seventh month. Humble yourselves do no work.