אֵ֛לֶּה תַּעֲשׂ֥וּ לַיהוָ֖ה בְּמוֹעֲדֵיכֶ֑ם לְבַ֨ד מִנִּדְרֵיכֶ֜ם וְנִדְבֹתֵיכֶ֗ם לְעֹלֹֽתֵיכֶם֙ וּלְמִנְחֹ֣תֵיכֶ֔ם וּלְנִסְכֵּיכֶ֖ם וּלְשַׁלְמֵיכֶֽם׃
These ye shall offer unto the LORD in your appointed seasons, beside your vows, and your freewill-offerings, whether they be your burnt-offerings, or your meal-offerings, or your drink-offerings, or your peace-offerings.
Read halakhic rulings (Jewish law) on Numbers 29:39: and classical halakhic sources.