Abib or Aviv or Nissan

"This month is the beginning of months for you, it is the first month of the year for you." Exodus 12:2. Thus spoke Yahweh to Mosheh.

And  Exodus 13:4 says, "Today you are going out, in the month Abib." So the name of the first month of the year is Abib. But in Ester 3:7 it says, "In the first month, which is the month of Nisan, ". So the first month is also called Nisan. A name adopted from the Babylonian.

There is a calendar written in the Scripture. And the first month of the year is Abib or Nisan. Or as the Hebrew says, "the head of the year" is Abib.  And the 12th month is called Adar. In Ester 3:7 it says, "...until it fell on the twelfth month, which is the month of Adar."

Since there is a calendar written in the Scripture, there is absolutely no reason to follow the pagan Gregarian calender. By following the calendar as written in the Scripture, you will be able to observe the moedim or the appointed times of Yahweh. But if you follow the pagan Gregarian calender, you'll observe the pagan holidays. They are holidays but not holy days. When we can't differentiate between the holy days and the common days, we are no difference than those in Nineveh who cannot tell the difference between their right hands and their left hands.