This is from Robertson’s Word Pictures of the New Testament Bible by A. T. Robertson, the premier Koine Greek scholar of the late 19th and early 20th century.
His comments regarding
Romans 12:20 are as follows (copied and pasted directly from e-sword):
Romans 12:20
- Feed him (psōmize auton). Quotation from lxx text of
Proverbs 25:21f. Present active imperative of verb from psōmos, a morsel, and so to feed crumbs to babies, then to feed in general. In N.T. only here and 1Co_13:3.
- Thou shalt heap (sōreuseis). Future active of old verb sōreuō from sōros, a heap. In N.T. only here and 2Ti_3:6.
- Coals of fire (anthrakas puros). That is, burning or live coals.
Anthrax (our “anthracite”) is an old word, only here in N.T. It is a metaphor for keen anguish.