Elijah comes from Hebrew and is traditionally translated as "my God is Yahweh," a name carried by a prophet known for uncompromising conviction. It's commonly read as suggesting devotion held firmly rather than loosely -- a name associated with steadiness of belief more than outward display.
Three manner of wayes the Planets are varied or changed, by reason of their first qualities, of their Houses, and significations. - William Lilly (1602.-1681.)