19 And the disciples did as Jesus had appointed them, and they made ready the passover.
Matthew 26:19 Cross References - EJ2000
Exodus 12:4-8
4 and if the household is too small and is not able to eat the lamb, let him and his neighbour next unto his house take it according to the number of persons; each one according to his eating shall make your count for the lamb.
5 The lamb shall be without blemish, a male of one year; ye shall take it out from the sheep or from the goats;
6 and ye shall keep it up until the fourteenth day of the same month, and the whole assembly of the congregation of Israel shall kill it between the two evenings.
7 And they shall take of the blood and put it on the two side posts and on the upper door post of the houses in which they shall eat it.
8 And they shall eat the flesh in that night, roasted with fire, and unleavened bread; and with bitter herbs they shall eat it.
2 Chronicles 35:10-11
Matthew 21:6
6 And the disciples went and did as Jesus commanded them
John 2:5
5 His mother said unto the servants, Whatsoever he saith unto you, do it.
John 15:14
14 Ye are my friends if ye do whatsoever I command you.