John 3:16 in the Bible tells us "For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life." God loved all of humanity so greatly that He allowed His Son to be the ultimate sacrifice for our sins. And it's because of this incredible love, grace, and sacrifice, for us, that we have the desire to share that with anyone and everyone. Jesus said that we are to love our neighbor as ourselves. So because of that want and need to follow his example of loving everyone and His command to, "Go ye, therefore, and preach to all nations....", that's why we do what we do. And that true passion is evident in everything we do at SMBC.
The Bible says that God knows the number of stars in the sky, and He knows the number of hairs on your head. He watches over the tiniest of creatures He created, like the little ants on the ground, yet He is so ultimately powerful that He can calm the oceans with His voice. He is the Creator of all, and He is forever in control. He loves us so much, that He gave His son as payment for our sins, in order to take our place. And He never leaves us alone, in good times and bad; even when we don't understand what He has in store for us, we still know that His loving arms are always there to comfort us in times of trouble. Knowing what a kind and merciful God He is, how could we ever keep it a secret? That's why we do what we do.