The moed of Yom Teruah is known by many names. Yom Teruah literally means the Day of the Shofar Sound. In Christian nomenclature it is called The Feast of Trumpets. It occurs six cycles of the new moon (i.e. six months) after Pesach on the first day of the seventh month in the Biblical calendar.
It marks the end of a long, hot, and dry summer and the beginning of the fall festivals.
As we examine this moed and discover what Scripture has to tell us about it, we should consider that the same very same G-d Who granted grace and mercy by sending His Son to die for our sins will send that same Son again to defeat His enemies and judge the world.