Hen (הֵן) is an attention-directing particle, related to but softer than hinneh (הִנֵּה). It introduces something that is surprising, significant, or being presented for consideration. It can function as: (1) a demonstrative — 'behold, here is...'; (2) a conditional — 'even if...' or 'suppose that...'; or (3) an exclamation of wonder or admission.
Hen appears often in wisdom and prophetic literature where a startling truth is being introduced. Job uses it repeatedly: 'Behold (hen), he snatches away; who can stop him?' (Job 9:12). Isaiah 40:15 uses it for breathtaking theological assertion: 'Behold (hen), the nations are like a drop from a bucket.' The particle forces the reader to pause and take notice — much like the English 'Look:' before a powerful statement. Its conditional use appears in legal and covenantal contexts: 'If (hen) you walk in my ways...' It is linguistically related to Aramaic hen and Greek ean (if).
Like its stronger cousin hinneh, hen serves as a theological exclamation point. When Scripture says 'behold,' it is not decorative — it is a divine imperative to pay attention. The prophets use hen to introduce the most radical reversals: the nations reduced to a drop, the servant bearing our griefs. Training the ear to hear these particles helps the reader catch moments of theological breakthrough in the text.