Shared ground
Elihu’s basic claim is that God is not silent: God “speaks” repeatedly, but people often fail to recognize it (v.14). In this unit Elihu highlights one channel of divine communication: dreams and night visions during deep sleep (vv.15–16). In that setting God “opens” a person’s hearing and “seals” instruction on them, describing an internal warning that becomes definite and weighty.
Elihu also states a moral purpose for this communication: to turn a person away from “his purpose” (a self-chosen course) and to hide pride from him (v.17). The hoped-for outcome is restraint from ruin and death, pictured as being kept back from “the pit” and from the sword (v.18).
Where interpretation differs
Some readers take this as a general description of how God commonly warns people through ordinary dreams. Others take Elihu to mean rare, vivid revelatory dreams that carry clear instruction, not the typical mix of nighttime imagery most people experience.
A second difference concerns what “withdraw man from his purpose” means (v.17). Some read it narrowly as turning someone from a sinful plan. Others read it more broadly as God interrupting any self-directed path rooted in pride, even if the plan looks reasonable on the surface.
A third difference is how concrete the danger is in v.18. Some see “pit” and “sword” as literal threats (death, violence). Others hear them as wisdom-poetry images for ruin more generally, including social collapse or disaster.
Why the disagreement exists
The passage uses compressed poetic language (“once…twice,” “seals instruction,” “pit”), which can be read either as everyday experience or as heightened, extraordinary events. Also, Elihu gives the purpose (preventing pride and ruin) more clearly than the mechanics (how to distinguish a divine warning dream from other dreams), leaving room for different judgments.
What this passage clearly contributes
Explicitly, Elihu claims: God speaks more than once; humans often miss it; God can speak through dreams; God can impress a warning that restrains pride and diverts a person from a chosen course; and this restraint can preserve life from destruction (vv.14–18). Theological inferences may go further (for example, how often this happens or how to test such experiences), but those questions are not directly answered in this unit. Job 33:14–18