Exodus 12:2
“This month shall be unto you the beginning of months: it shall be the first month of the year to you.”
And the Lord spake unto Moses and Aaron in the land of Egypt, saying,
This month shall be unto you the beginning of months: it shall be the first month of the year to you.
Speak ye unto all the congregation of Israel, saying, In the tenth day of this month they shall take to them every man a lamb, according to the house of their fathers, a lamb for an house:
And if the household be too little for the lamb, let him and his neighbour next unto his house take it according to the number of the souls; every man according to his eating shall make your count for the lamb.
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Related Verses
“In the first month, on the fourteenth day of the month at even, ye shall eat unleavened bread, until the one and twentieth day of the month at even.”
“Thou shalt therefore keep this ordinance in his season from year to year.”
“That thou shalt set apart unto the Lord all that openeth the matrix, and every firstling that cometh of a beast which thou hast; the males shall be the Lord’s.”
“The feast of unleavened bread shalt thou keep. Seven days thou shalt eat unleavened bread, as I commanded thee, in the time of the month Abib: for in the month Abib thou camest out from Egypt.”
“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 in the evening.”