The final shofar (Ram's horn) will sound the Tekiah Gadolah (The lengthy declaration of G-d's holiness), the Mashiyach (Messiah) will return and Yom Ha-Din (The Judgement period) will begin. This sound will be the sound of joy to those who have accepted the redemption of G-d through Yeshua our King Mashiyach (Messiah), but to those who continue to resist G-d's mercy it will be the sound of eternal punishment.