Two names and a variety of titles are used to refer to Jesus in the New Testament. In Christianity, the two names Jesus and Emmanuel that refer to Jesus in the New Testament have salvific attributes. After the crucifixion of Jesus the early Church did not simply repeat his messages, but focused on him, proclaimed him, and tried to understand and explain his message. One element of the process of understanding and proclaiming Jesus was the attribution of titles to him. Some of the titles that were gradually used in the early Church and then appeared in the New Testament were adopted from the Jewish context of the age, while others were selected to refer to, and underscore the message, mission and teachings of Jesus. In time, some of these titles gathered significant Christological significance. Christians have attached theological significance to the Holy Name of Jesus. The use of the name of Jesus in petitions is stressed in John 16:23 when Jesus states: "If you ask the Father anything in my name he will give it you." There is widespread belief among Christians that the name Jesus is not merely a sequence of identifying symbols but includes intrinsic divine power. Names Jesus In the New Testament the name Jesus is given both in the Gospel of Luke and the Gospel of Matthew, and Emmanuel only in Matthew. In Luke 1:31 an angel tells Mary to name her child Jesus, and in Matthew 1:21 an angel tells Joseph to name the child Jesus. The statement in Matthew 1:21 "you shall call his name Jesus, for he will save his people from their sins" associates salvific attributes to the name Jesus in Christian theology. Although the precise difference between a 'name' and a 'title' may be open to interpretation, 198 different names and titles of Jesus in the Bible are listed in Cruden's Concordance, first published in 1737, and continuously in print ever since. The first index of the book (following the royal dedications and author's preface) is entitled "A collection of the Names and Titles given to Jesus Christ", with 198 names listed, each accompanied by a biblical reference. Etymology There have been a number of proposals as to the origin and etymological origin of the name Jesus. The name is related to the Biblical Hebrew form Yehoshua`(), which is a theophoric name first mentioned in the Bible in referring to