Meaning of burning bush

burn'ing bush'

1. a bush that “burned with fire and … was not consumed,” from which an angel spoke to Moses. (Ex. 3:2).
2. Also calleda shrubby plant, Kochia scoparia, of the goosefoot family, having dense, feathery foliage that turns red in fall.
3. any of various plants of the genus Euonymus having bright red foliage in autumn.