The answer is: Seven

Rev 8:2

In the book of Revelation, specifically in Revelation 8:2, we are introduced to the fascinating imagery of seven angels holding trumpets. This moment is significant not just because of the number seven—a symbol often associated with divine perfection and completion in biblical terms—but also because these trumpets serve as instruments of God's will and herald significant events to come.

The act of blowing a trumpet in biblical culture often signified the announcement of important news, calls to worship, or even calls to battle. For instance, in ancient Israel, the trumpet (or shofar) played a crucial role during festivals, including the Jewish New Year, when it was sounded to inspire awe and reflection.

The activities of these angels contribute to what is sometimes called the "Judgment Letters" or "Apocalyptic Imagery," with each trumpet blast heralding cataclysmic events upon the earth, acting as warnings and clarion calls of divine messages. Interestingly, this echoes how the Old Testament describes trumpet blasts during significant moments, such as the conquest of Jericho in Joshua 6, where the walls fell after the seventh trumpet sounded.

Additionally, understanding their message extends the idea that angels are more than just messengers; they act through powerful symbols and rich imagery to communicate the significance of God's plan, captivating the mind and spurring action towards spiritual readiness among believers. So, as these trumpets resound in Revelation, they call attention to the earthly impacts of heavenly interventions.