[21:4] 1 tn Heb “the tillage [נִר, nir] of the wicked is sin” (so NAB). The subject picks up the subjects of the first half of the verse, indicating they are equal – the tillage consists of the arrogance and pride. The word “tillage” is figurative, of course, signifying that the agricultural product (the point of the comparison) of the wicked is sin. The relationship between the ideas is then problematic. Are pride and arrogance what the wicked produce? Some (ASV, NASB, NIV, NRSV) have followed the LXX and Tg. Prov 21:4 to read “lamp” instead (נֵר, ner), but that does not solve the difficulty of the relationship between the expressions. It does, however, say that the life ( = lamp), which is arrogance and pride, is sin.
[21:5] 2 tn The word “diligent” is an adjective used substantivally. The related verb means “to cut, sharpen, decide”; so the adjective describes one who is “sharp” – one who acts decisively. The word “hasty” has the idea of being pressed or pressured into quick actions. So the text contrasts calculated expeditiousness with unproductive haste. C. H. Toy does not like this contrast, and so proposes changing the latter to “lazy” (Proverbs [ICC], 399), but W. McKane rightly criticizes that as unnecessarily forming a pedestrian antithesis (Proverbs [OTL], 550).
[21:5] 3 tn The term “lead” is supplied in the translation.
[21:5] 4 tn The Hebrew noun translated “plenty” comes from the verb יָתַר (yatar), which means “to remain over.” So the calculated diligence will lead to abundance, prosperity.