Gabriel comes from Hebrew and translates directly as "God is my strength," a name carried by a messenger figure central to several religious traditions. Its meaning centers on strength drawn from outside oneself rather than raw willpower, and it has long been associated with steadiness under difficult news.
There will neither good or evil be performed, but when the good or bad planets in a nativity or revolution shall aspect the Moon by a quadrate. - William Lilly (1602.-1681.)