The early churches reflected their origin and worshipped in the Czech language. By the 1940s, most of the churches reflected assimilation into the surrounding culture and worshipped in the English language. In 1959, the name Unity of the Brethren was adopted. This body accepts the Apostles' Creed as a valid expression of their beliefs, and stresses the ancient motto, "In essentials, unity; in non-essentials, liberty; in all things, love." They believe the Bible is God's revelation to man, the sourcebook for all spiritual truth; that one God is revealed in three persons; that Christ is the only way of salvation; that salvation is by grace through faith; that the Holy Spirit dwells in believers; and that Jesus Christ will return to judge the world and reward the faithful believers. The Unity practices two sacraments—water baptism and holy communion. Christian parents present their infant children for baptism. All Christians are invited to communicate with them at the Lord's supper or communion. However, they do not regard full agreement on the elements, methods and modes of the sacraments as essential. They believe that love is the supreme evidence of Christian disciples. The Unity of the Brethren church has adopted a church emblem having an open Bible, with a cross behind in the center, and a chalice in front to the left. According to the church, the "cross represents Christ as the resurrected and living Lord, the Bible is the sourcebook of all Christian truth, open for all to explore, while the chalice holds special significance for Brethren: not only is it a symbol of the Lord's Supper, but it is also a reminder of the pre-Reformation insistence of John Hus and the early Brethren upon receiving wine as well as bread in Holy Communion." Currently the church is made up of 28 congregations with an estimated membership of 3500, with all except one located in the state of Texas. The location of the majority of churches is roughly the area from West, Temple, to Austin to Houston. The synod meets every two years. The Unity of the Brethren maintains several ministry organizations, including the Board of Christian Education; Brethren Youth Fellowship; Brethren Bookstore, operated in Caldwell, Texas; "Brethren Journal" (founded 1902); Christian Sisters Union; Friends of the Hus Encampment; Grants and Bequests Board; the Hus Institute for Lay Leadership (which meets with the various congregations); and the Mutual Aid Society. The Hus Encampment Facility is located near Caldwell, Texas.