Exodus 23:16-18

American Standard Version

¹⁶ and the feast of harvest, the first-fruits of thy labors, which thou sowest in the field: and the feast of ingathering, at the end of the year, when thou gatherest in thy labors out of the field. ¹⁷ Three times in the year all thy males shall appear before the Lord Jehovah.

¹⁸ Thou shalt not offer the blood of my sacrifice with leavened bread; neither shall the fat of my feast remain all night until the morning.