According to the linguist Anatoly Liberman, "the use of metaphors is relatively late in the modern European languages; it is, in principle, a post-Renaissance phenomenon". In contrast, in the ancient Hebrew psalms (around 1000 B.C.), one finds already vivid and poetic examples of metaphor following example given is that of a simile, rather than the intended metaphorsuch as, "...He is like a tree planted by streams of water, yielding its fruit in season, whose leaf does not wither." The Lord is my rock, my fortress and my deliverer; my God is my rock, in whom I take refuge, my shield and the horn of my salvation, my stronghold. The Lord is my shepherd, I shall not want. At the other extreme, some recent linguistic theories view all language in essence as metaphorical.