Exodus 34:23-25

Amplified Bible, Classic Edition

²³ Three times in the year shall all your males appear before the Lord God, the God of Israel.

²⁴ For I will cast out the nations before you and enlarge your borders; neither shall any man desire [and molest] your land when you go up to appear before the Lord your God three times in the year.

²⁵ You shall not offer the blood of My sacrifice with leaven; neither shall the sacrifice of the Feast of the Passover be left until morning.