The SundaySunday Observed by Christians as a day of rest and worship. Traditionally regarded as the first day of the week, the day on which Christ's Resurrection is believed to have taken place. For this reason it replaced the Jewish Sabbath in Christian practice. before Easter, marked by the blessing of palms and a procession commemorating Christ’s entry into JerusalemJerusalem City captured and made into the capital city of Israel by King David. Site of the Temple built by Solomon, and of the Crucifixion and Resurrection of Jesus. A holy city for Jews, Christians and Muslims (Matthew 21: 1-11).