When we see the term “trump” or “trumpet”, it is usually a reference to the admonition in Leviticus 23:24 to memorialize the blowing of trumpets. Jesus tells us in Matthew 24:31 that the gathering of His people will be announced with the sound of a trumpet. Paul tells us that at the last trumpet “the dead will be raised...and we shall be changed” I Corinthians 15:52. Paul told the Thessalonians to “comfort one another” with the knowledge that at the sound of the trumpet, those who are “dead in Christ” and those who are “alive...shall be caught up together...in the clouds to meet the Lord...” I Thessalonians 4:16-18
The last trumpet, or the great trumpet, is also written about by John in Revelation 11, where the seventh trumpet blast heralds the return of Christ to earth as King, and ushers in the resurrection and judgment of the saints. Revelation 11:15-19 These are but a couple of references to the blowing of the trumpet that God tells us in Leviticus 23 to memorialize or remember. Not only is the trumpet blast a memorial for us to remember what God will do for us; it is also a reminder to God of His covenants with us. (Compare Numbers 10:9-10 with Exodus 2:23-24).