Biblical Calendar Principles

How to Assess Various Calendars to Establish Festival Dates

The question of God’s calendar is not simply about dates—it is about authority. Scripture reveals that time is not determined by human systems, traditions, or institutions, but by God Himself through creation.

From the beginning, God established clear markers for time: the sun, moon, and stars were given “for signs and seasons, and for days and years” (Genesis 1:14). These heavenly bodies form the foundation of the biblical calendar.

Rather than beginning with modern calendars or inherited traditions, Scripture calls us back to first principles. How does God measure time? What does He use to mark months and years? And how do His appointed times remain consistent regardless of human changes?

This study focuses on those foundational principles, providing a framework for understanding how God’s calendar operates.

Prophetic Insights

• In this article, five principles are laid out for analyzing any calendar you are studying.
  • Letting the Bible determine the roles of the heavenly bodies
  • Using the festivals and their typology for understanding the Biblical calendar
  • Following what Yeshua said and did
  • Understanding the origin of the ancient Babylonian calendar.
  • Fitting a 365-day year into a 360-day year system
• With these principles, you have a basis to measure if the calendar you are studying matches the calendar Yeshua lived and died by.

Key Bible Texts

• Genesis 1:14
• Exodus 12:1–2
• Leviticus 23
• Psalm 104:19
• Daniel 7:25
• Isaiah 66:22–23

Key Takeaways

• God established time through creation, it was not established on human authority.
• The moon determines months, and the year must align with seasons.
• The calendar is observational and tied to real-world conditions.
• God’s appointed times define the purpose of the calendar.
• The final restoration will bring complete alignment with God’s order.