Leviticus 23:21
And ye shall proclaim on the selfsame day, that it may be an holy convocation unto you: ye shall do no servile work therein: it shall be a statute for ever in all your dwellings throughout your generations.
Cross-reference
Leviticus 23:2
Parallel
Leviticus 23:2 introduces 'sacred assemblies' as the Lord's appointed festivals—the same term used here for this day's proclamation.
Leviticus 23:4
Parallel
Leviticus 23:4 repeats the command to proclaim sacred assemblies at appointed times, linking directly to the assembly here.
Exodus 12:16
Parallel
Exodus 12:16 similarly commands a sacred assembly with no work on the first and seventh days of Unleavened Bread—parallel to this feast day.
Numbers 28:25
Parallel
In Numbers 28:25, the same wording 'holy convocation, no ordinary work' appears for the seventh day of Unleavened Bread, reinforcing the pattern.