Numbers 9:5

“And they kept the passover on the fourteenth, day of the first month at even in the wilderness of Sinai, etc.] No mention is made of keeping the feast of unleavened bread seven days, only of the passover, which indeed was only enjoined at this time, though the feast of unleavened bread used to follow it, and did in later times; but perhaps it would not have been an easy matter to have got the flour to make it of, sufficient for so large a body of people, for seven days together in the wilderness; though they might be able to furnish themselves with what was enough for one meal from the neighbouring countries, and especially from Midian, where Jethro, Moses’s father, lived, and which was not…”

“Passover at Sinai. This, as being kept in the first month, was prior in time to the numbering of Numbers 1:1 ff, and to the other events narrated in this book. It is, however, recorded here as introductory to the ordinance of Numbers 9:6-14 in this chapter respecting the supplementary Passover; the observance of which was one of the last occurrences during the halt at Sinai. Numbers 9:5 In some details, the present Passover differed both from that kept at the Exodus itself and from all subsequent Passovers. For example, the direction of Exodus 12:22 could not be carried out in the letter while the people were dwelling in tents; and may be regarded as superseded by Leviticus 17:3-6 (compare…”

“they kept: Jos 5:10 according: Num 8:20, Num 29:40; Gen 6:22, Gen 7:5; Exo 39:32, Exo 39:42; Deu 1:3, Deu 4:5; Mat 28:20; Joh 15:14; Act 26:19; Heb 3:5, Heb 11:8 Numbers 9:6”