The Lor's Prayer, also known as the Our Father or Pater noster is probably the best-known prayer in Christianity. On Easter Sunday 2007 it was estimated that 2 billion Catholic, Protestant and Eastern Orthodox Christians read, recited, or sang the short prayer in hundreds of languages in houses of worship of all shapes and sizes. Although many theological differences and various modes and manners of worship divide Christians, according to Fuller Seminary professor Clayton Schmit "there is a sense of solidarity in knowing that Christians around the globe are praying together…, and these words always unite us."