David Livingstone (19 March 1813 – 1 May 1873) the famous missionary and explorer of the continent of Africa, read Psalm 121 and which praises God for his protection as we journey doing his will. Livingston read Psalm 121 to his father and sister before setting out for Africa in 1840. His mother-in-law, Mrs. Moffat, wrote him at that Psalm 121 was always in her mind as she thought about and prayed for him.” (James Montgomery Boice).