The biblical calendar begins with the month of Aviv, as commanded in Exodus 12:2. In 2025, Aviv 1 was determined by the sighting of the sliver of the new moon on the evening of March 29, marking the start of the biblical year. This post outlines the key dates and themes from Aviv through the fall feasts, with devotional insights for each season.
📌 Note: All dates are based on visual new moon observation from Jerusalem. Fall feast dates may shift depending on the actual sighting of the new moon of the seventh month (Tishrei).
Timeline of Biblical Months (2025)
| Month | Start Date (Sunset) | Key Events |
|---|---|---|
| Aviv | March 29 | Passover (April 12), Unleavened Bread |
| Iyyar | April 27 | Counting the Omer |
| Sivan | May 26 | Shavuot (Pentecost) |
| Tammuz | June 24 | — |
| Av | July 23 | Tisha B’Av (Av 9) |
| Elul | August 21 | Month of repentance |
| Tishrei | Estimated: September 19 | Trumpets, Atonement, Sukkot |
Devotional Themes by Season
Elul: A Time to Return
Dates: August 21–September 18
Focus: Repentance, introspection, preparing for the King
Scripture: Psalm 27, Joel 2:12–13
“Return to Me with all your heart…”
Yom Teruah (Feast of Trumpets)
Estimated Date: September 19 (Tishrei 1)
Focus: Awakening, coronation, alertness
Scripture: Leviticus 23:24, 1 Thessalonians 4:16–17
“Yahweh Himself will descend with a shout…”
Final date depends on the confirmed sighting of the new moon of the seventh month.
Yom Kippur (Day of Atonement)
Estimated Date: September 28 (Tishrei 10)
Focus: Atonement, humility, reconciliation
Scripture: Isaiah 58, Hebrews 9–10
“Afflict your souls and present an offering…”
Sukkot (Feast of Tabernacles)
Estimated Dates: October 3–9 (Tishrei 15–21)
Focus: Joy, dwelling, provision
Scripture: Zechariah 14:16–19, John 7
“He tabernacled among us…”
Shemini Atzeret
Estimated Date: October 10 (Tishrei 22)
Focus: Intimacy, lingering with God
Scripture: Deuteronomy 14:22–29, Revelation 21
“The dwelling of God is with man…”
Closing Reflection
As we journey from redemption in Aviv to dwelling in Sukkot, the biblical calendar invites us to align our lives with Yahweh’s rhythm. May this season deepen your walk, awaken your spirit, and renew your joy.
📌 For communities following the observational calendar, feast dates may vary slightly depending on the actual sighting of the new moon. Stay watchful and ready.
EN 
ES
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