Psalms 81

Asaph : father of Joah, Hezekiah's recorder,son of Berechiah the Levite; music minister under David,father of Zichri; a Levite ancestor of some returnees,an official over the (Persian) king's forest in Judah

Egypt : descendants of Mizraim
(30° 6´, 31° 20´); (30° 6´, 31° 20´)

Gittith : a tune name

Israel : a citizen of Israel.,a member of the nation of Israel

Jacob : the second so of a pair of twins born to Isaac and Rebeccaa; ancestor of the 12 tribes of Israel,the nation of Israel,a person, male,son of Isaac; Israel the man and nation

Joseph : the husband of Mary and foster-father of Jesus,a Jewish man from Arimathea in whose grave the body of Jesus was laid,two different men listed as ancestors of Jesus,a man nominated with Matthias to take the place of Judas Iscariot as apostle,a son of Jacob and Rachel; the father of Ephraim and Manasseh and ruler of Egypt,a brother of Jesus; a son of Mary,a man who was a companion of Paul,son of Jacob and Rachel; patriarch of the tribes of Ephraim and Manasseh,a tribe, actually two tribes named after Joseph's sons, Ephraim and Manasseh,father of Igal, of Issachar, who helped spy out Canaan,son of Asaph the Levite; worship leader under Asaph and King David,a man who put away his heathen wife; an Israelite descended from Binnui,priest and head of the house of Shebaniah under High Priest Joiakim in the time of Nehemiah

Meribah : a place at Kadesh-Barnea where Moses struck the rock for water
(30° 41´, 34° 29´); (28° 43´, 33° 50´); (30° 41´, 34° 29´)

Selah : a musical notation for crescendo or emphasis by action (IBD)
(30° 19´, 35° 27´)