Olive

R. K. Harrison notes that "unless cosmetic ointments (Ru 3:3; 2 Sam 14:2; Ps. 104:15) or oil of myrrh (Est. 2:12) are indicated, all other biblical references to oil are to the expressed product of the olive fruit." Consequently olive found, and is mentioned in the Bible in, every use that could be imagined in ancient Israel's life, from the high liturgical and ceremonial to the necessity as food, and the humble mundane of giving light at night.

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Further Reading & Resources:

☰ J.C.T. Haveman, "Cultivated olive - wild olive: the olive tree metaphor in Romans 11:16-24," Neotestamentica 31.1 (1997): 87-106.