Deuteronomy 16:6

“But at the place which the Lord thy God shall choose to place his name in, etc.] To place the ark and the mercy seat with the cherubim over them, where he caused his Shechinah, or divine Majesty, to dwell; and this was at Jerusalem, where the temple was built by Solomon: there thou shalt sacrifice the passover; kill and eat the paschal lamb: at even, at the going down of the sun; between the two evenings it was killed, before the sun was set, and afterwards at night it was eaten; the Targum of Jonathan is, “and at evening, at the setting of the sun, ye shall eat it until the middle of the night:” at the season that thou camest forth out of Egypt; or as the same Targum, “the time of the…”

“at the season--that is, the month and day, though not perhaps the precise hour. The immense number of victims that had to be immolated on the eve of the passover--that is, within a space of four hours--has appeared to some writers a great difficulty. But the large number of officiating priests, their dexterity and skill in the preparation of the sacrifices, the wide range of the court, the extraordinary dimensions of the altar of burnt offering and orderly method of conducting the solemn ceremonial, rendered it easy to do that in a few hours, which would otherwise have required as many days.”

“The cardinal point on which the whole of the prescriptions in this chapter turn, is evidently the same as has been so often insisted on in the previous chapters, namely, the concentration of the religious services of the people round one common sanctuary. The prohibition against observing the great Feasts of Passover, Pentecost, and tabernacle, the three annual epochs in the sacred year of the Jew, at home and in private, is reiterated in a variety of words no less than six times in the first sixteen verses of this chapter Deuteronomy 16:2, Deuteronomy 16:6-7, Deuteronomy 16:11, Deuteronomy 16:15-16. Hence, it is easy to see why nothing is here said of the other holy days. The Feast of…”

“There - Namely, in the court of the tabernacle or temple. This he prescribed, partly that this great work might be done with more solemnity in such manner as God required; partly, because it was not only a sacrament, but also a sacrifice, and because here was the sprinkling of blood, which is the essential part of a sacrifice; and partly to design the place where Christ, the true passover or lamb of God, was to be slain. At the season - About the time you were preparing yourselves for it. Deuteronomy 16:7”

“at even: Exo 12:6-9; Num 9:3, Num 9:11; Mat 26:20; Heb 1:2, Heb 1:3, Heb 9:26; Pe1 1:19, Pe1 1:20 Deuteronomy 16:7”