You are to observe it at the appointed time, at twilight on the fourteenth day of this month, in accordance with its statutes and ordinances.”
Here we have, I. An order given for the solemnization of the passover, the day twelvemonth after they came out of Egypt, on the fourteenth day of the first month of the second year, some days before they were numbered, for that was done in the beginning of the second month. Observe, 1.
Commenting on Numbers 9:1-14
In the fourteenth day of this month,.... The first month, the month Nisan or Abib, answering to part of our March: at even ye shall keep it, in his appointed season: between the two evenings, Exo 12:6; and even if it fall on the sabbath day, as Jarchi; and this was a sabbath day, according to the Jewish writers (y): according to all the rites...
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. (a) Even in all points as the Lord has instituted it.