The theology of the Salvation Army is derived from that of Methodism, although it is distinctive in institution and practice. A peculiarity of the Army is that it gives its clergy titles of military ranks, such as "lieutenant" or "major". It does not celebrate the rites of Baptism and Holy Communion. However, the Army's doctrine is otherwise typical of holiness churches in the Wesleyan–Arminian tradition. The Army's purposes are "the advancement of the Christian religion ... of education, the relief of poverty, and other charitable objects beneficial to society or the community of mankind as a whole".