The centurion: The Latin word centurion refers to an officer in charge of 100 men.
Jesus as the Son of God was announced by many voices. God declared it(1:11; 9:7). Demons also recognized it (1:24, 34; 3:11; 5:7). Mark states it at the beginning of the Gospel (1:1). Jesus himself speaks about it (12:6; 13:32; 14:61–62). Now, a Gentile (non-Jewish) officer also declares it.