Numbers 9:3
In the fourteenth day of this month, at even, ye shall keep it in his appointed season: according to all the rites of it, and according to all the ceremonies thereof, shall ye keep it.
Cross-references
Numbers 9:11 provides an alternate date (second month) for those unclean, complementing the primary date commanded here.
Numbers 9:12 spells out a specific statute (no bone broken) that this verse's 'all its statutes' includes.
Numbers 9:13 enforces the command here by adding the penalty of being cut off for those who neglect the Passover.
Numbers 28:16 restates the Passover on the fourteenth day of the first month, directly paralleling the command in Numbers 9:3.
Exodus 12:6 specifies the exact date (14th day at twilight) that this verse's 'appointed time' refers to.
Exodus 12:7-11 gives the detailed statutes (blood, unleavened bread, haste) that this verse refers to as 'all its statutes and judgments.'
Deuteronomy 16:6 adds the requirement to sacrifice the Passover at the central sanctuary at twilight, expanding on the timing and location.
2 Chronicles 35:1 records Josiah's historical observance of Passover on the exact date, fulfilling the command given here.
In 2 Chronicles 30:2, Hezekiah delays Passover to the second month, contrasting with this verse's command to keep it at the appointed first month.
2 Chronicles 30:15 records them slaughtering the lamb on the second month's fourteenth day, a direct deviation from the first‑month timing here.