Exodus 12:6 - Matthew Poole's English Annotations on the Holy Bible

Ye shall keep it up; separate it from the rest of the flock, and keep it in a safe place; the reasons of which, Exodus 12:3. The whole assembly; or rather, every assembly, to wit, every such society as meet together for eating of the lamb. And the assembly is said to kill it, because one person did it in their name, and by their appointment; in which manner, and upon which reason, the whole congregation is said to stone a man, Leviticus 24:14,16 Num 15:35 Deuteronomy 22:21. It is probable it was killed by the master of the family, who was a priest in his own family, &c. In the evening; Heb. between the evenings, or the two evenings, i.e. between the beginning and end of the evening. The evening is one third part of the day, and one of the appointed and usual times of devotion, as appears from Psalms 55:17 Daniel 6:10; and it begun at their ninth or our third hour, as may be gathered from Acts 3:1; for then the sun began more sensibly to decline, whence that time is fitly called by the Jews the first evening, and that was the time of the evening sacrifice; the second evening was when the sun was setting or set. Between these it was to be killed. This had a respect both to the time of the world's age when Christ came, which was its evening, or declining time, or end, Hebrews 1:2, Hebrews 9:26 1 Peter 1:20; and the time of the day in which Christ our Passover was killed, Matthew 27:46-50 Mark 15:25,33,34.