It is quite proper to say that Christianity has its roots in Judaism. The Old Testament laid the groundwork for the New, and it is impossible to fully understand Christianity without a working knowledge of the Old Testament (see the books of Matthew and Hebrews).
Ni sahihi kabisa kusema kwamba Ukristo una mizizi yake katika Uyahudi. Agano la Kale liliweka msingi kwa ajili ya Agano Jipya, na ni vigumu kuelewa Ukristo bila maarifa ya kazi ya Agano la Kale (angalia vitabu vya Mathayo na Waebrania).