de-stroi’-er: In several passages the word designates a supernatural agent of destruction, or destroying angel, executing Divine judgment.
(3) In the Apocrypha, "the destroyer" is once referred to as "the minister of punishment" (Revised Version; literally, "him who was punishing"), who brought death into the world (18:22-25).
In later Jewish theology (the Targums and Midrash), the "destroyer" or "angel of death" appears under the name Sammael (i.e. the poison of God), who was once an arch-angel before the throne of God, and who caused the serpent to tempt Eve. According to Weber, he is not to be distinguished from Satan. The chief distinction between the "destroyer" of early thought and the Sammael of later Judaism is that the former was regarded as the emissary of Yahweh, and subservient to His will, and sometimes was not clearly distinguished from Yahweh Himself, whereas the latter was regarded as a perfectly distinct individuality, acting in independence or semi-independence, and from purely malicious and evil motives. The change was largely due to the influence of Persian dualism, which made good and evil to be independent powers.
D. Miall Edwards