Blow the trumpet in Zion, declare a holy fast, call a sacred assembly (Joel 2:15).
Economic disaster was imminent when Joel prophesied to the nation of Judah. Locusts had come through and had wiped out the crops. Unlike our day where we have grain stored away for years and we even bid on the FUTURE price of those commodities, when their crops were destroyed they didn’t eat till the next year (at least not that food).
Richard Owen Roberts, a student of revivals throughout history and an author on the subject, identifies the “solemn (or sacred) assembly” as the answer prescribed by God for any kind of imminent appeal to avoid disaster. When the “Ark of the Covenant” was captured by the Philistines, Samuel proclaimed a fast and called the people together to repent before God (I Sam 7). When kings Asa and Jehoshaphat were threatened by nations mightier than they were, they each called upon the people to fast and repent at a solemn assembly (2 Chron 14, 20). When God declared judgment for the sins of his grandfather, Manasseh, King Josiah was moved to repentance himself and called the people to the same in 2 Chron 34:29.
Usually the solemn assembly was accompanied by fasting because throughout the Old Testament, fasting was a sign of self-humiliation, mourning and repentance. It is significant that historically the singular sign of a repentant spirit was the willingness to mourn through fasting. That’s why the annual Day of Atonement (Yom Kippur) has historically been known as “the Fast” (see Acts 27:9).
God responds to the Solemn Assembly – not because there is anything magical about an assembly – but because He responds to brokenness and contrition. When Christians mourn and confess and repent of their sin He takes notice because He sees that we understand the seriousness of sin. When Isaiah wrote that Jesus was “crushed” for our iniquities in Isaiah 53:5, that word is the same Hebrew word that is translated “contrite” in Psalm 51:17 – “a broken and contrite heart, O God, You will not despise.” The power of a single Christian’s repentance is significant, but when a group of Christians – as in a local church – gather to genuinely mourn their sin, His heart is moved to action on their behalf.
In our day the Church has decided that His blessing must rest upon the mega-church because everyone strives for “bigness.” Pastors flock to the seminars or books of the most recent “success” story to learn their “secret,” which they are glad to share – for a price. (I even have a book in my library on how to use fasting to grow your church – apparently the author sees fasting as one of the tools in a pastor’s ecclesiastical toolbox!) But Isaiah tells us that if God wanted to build a BIG ministry, He wouldn’t need us. What He is looking for are those who are “humble…contrite…and who tremble at His Word” (Is. 66:2).