Ntsikana kaGaba (c.1780-1821) was a Xhosa seer, evangelist and hymn-writer of the Cira clan, remembered as the prophet who first rendered Christian faith in genuinely Xhosa idiom. Undergoing a visionary conversion, he gathered a community of followers and composed sacred songs, among them the 'Great Hymn', Ulo Thixo omkhulu ngosezulwini, 'He, the Great God in Heaven', the earliest hymn in the Xhosa language. He wove together older Xhosa conceptions of uThixo with new Christian teaching, and proclaimed the reign of Sifuba-Sibanzi, the Broad-Chested One, a redeemer in whom Xhosa and Christian hope converged. His message drew both Xhosa and displaced Khoi hearers, and his hymns and prophecies remained a living authority in later Xhosa religious movements.