In Judaism, the twenty-four priestly gifts are an enumeration of the various gifts which halakha requires to be given to Jewish priests (kohanim).
[1] These gifts were considered compensation for their service in the Temple in Jerusalem.
For example, most practicing Jews today do not give first-born of their animals to modern Kohanim.
Other practices may be followed, such as selling the mother animal to a non-Jew before it gives birth to the firstborn, and then buying back both the mother and the firstborn.
[2] According to the Tosefta,[3] ten 'gifts' which were to be given to the Kohanim within the Temple area were portions of: Four further gifts to be given (or to be consumed) within the confines of the walls of Jerusalem were: Ten gifts which might be given (or consumed) outside of Jerusalem were: Females, who did not serve in the Tabernacle or the Temple, were permitted to consume and/or benefit from some of the twenty-four priestly gifts.