Contradiction with Genesis 1:14
Genesis 1:14 states that the sun, moon, and stars were created to serve as signs for seasons and for days and years, implying that God established the calendar at Creation, which could be seen as contradictory to establishing a new beginning of months in Exodus 12:2.
Genesis 1:14: And God said, Let there be lights in the firmament of the heaven to divide the day from the night; and let them be for signs, and for seasons, and for days, and years: [the day...: Heb. between the day and between the night]
Contradiction with Leviticus 23:4
Leviticus 23:4 outlines the appointed feasts of the Lord, indicating that holy times were already established, which could contrast with the notion of beginning the calendar anew in Exodus 12:2.
Leviticus 23:4: These [are] the feasts of the LORD, [even] holy convocations, which ye shall proclaim in their seasons.
Contradiction with Numbers 28:16
Numbers 28:16 specifies the Passover as occurring on the fourteenth day of the first month, aligning with Exodus 12:2 but could be seen as contradictory in terms of emphasizing this timing when the timing might have been considered in place already.
Numbers 28:16: And in the fourteenth day of the first month [is] the passover of the LORD.
Paradox #1
The main historical inconsistency regarding this verse is related to the biblical calendar versus the modern calendar. The verse establishes the beginning of months in the Hebrew calendar, but matching this precisely to the modern Gregorian calendar can be tricky. Historical records outside the Bible can sometimes differ in terms of dates and events, which can lead to confusion or debate about the specific timing of biblical events.