'Of The Month' in the Bible

You are to eat unleavened bread in the first month, from the evening of the fourteenth day of the month until the evening of the twenty-first day.

In the third month, on the same day of the month that the Israelites had left the land of Egypt, they entered the Wilderness of Sinai.

The tabernacle was set up in the first month of the second year, on the first day of the month.