Exodus 23:15

15 aYou shall keep the Feast of Unleavened Bread. As I commanded you, you shall eat unleavened bread for seven days at the appointed time in the month of bAbib, for in it you came out of Egypt. cNone shall appear before me empty-handed.

Exodus 34:20

20The dfirstborn of a donkey you shall redeem with a lamb, or if you will not redeem it you shall break its neck. All the firstborn of your sons you shall redeem. And enone shall appear before me empty-handed.

Deuteronomy 16:16

16 fThree times a year all your males shall appear before the Lord your God at the place that he will choose: at the Feast of Unleavened Bread, at the Feast of Weeks, and at the Feast of Booths. gThey shall not appear before the Lord empty-handed.
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