laudable vs salt of the earth

laudable

adj
  • Healthy; salubrious; having a disposition to promote healing 

  • Worthy of being lauded; praiseworthy; commendable 

salt of the earth

noun
  • A decent, dependable, unpretentious person. 

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