Exodus 34:23-25

Common English Bible

²³ All your males should appear three times a year before the Lord God, Israel’s God. ²⁴ I will drive out nations before you and extend your borders. No one will desire and try to take your land if you go up and appear before the Lord your God three times a year.

²⁵ Don’t slaughter the blood of my sacrifice with anything leavened. The sacrifice of the Passover Festival shouldn’t be left over until the morning.