Numbers 9:3-5

New American Standard Bible

³ On the fourteenth day of this month, ^[a]at twilight, you shall celebrate it at its appointed time; you shall celebrate it in accordance with all its statutes and all its ordinances.” ⁴ So Moses ^[b]told the sons of Israel to celebrate the Passover. ⁵ And ^(A)they celebrated the Passover in the first month, on the fourteenth day of the month, at twilight, in the wilderness of Sinai; ^(B)in accordance with everything that the Lord had commanded Moses, so the sons of Israel did.