Deuteronomy 16:16-17

16 aThree 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. bThey shall not appear before the Lord empty-handed. 17Every man cshall give as he is able, daccording to the blessing of the Lord your God that he has given you.

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