bema vs chancel

bema

noun
  • Raised area of worship in a synagogue upon which rests the Holy Ark containing Scrolls of Torah. 

  • A platform from which speakers addressed an assembly. 

chancel

noun
  • The space around the altar in a church, often enclosed, for use by the clergy and the choir. In medieval cathedrals the chancel was usually enclosed or blocked off from the nave by an altar screen. 

How often have the words bema and chancel occurred in a corpus of books? (source: Google Ngram Viewer )