Shared ground
These two verses present Elihu’s main point in blunt form: human speech is not up to the task of taking God to court. He asks for instruction on what to say to God, then immediately explains why they are stuck—“darkness” blocks their ability to lay out a case (explicit textual claims: a request for teaching; inability to set out a case; darkness as the stated reason).
Elihu also treats the very intention to speak as risky. He frames it as a question: should someone even report, “I want to speak,” and is that like wishing to be “swallowed up” (explicit textual claims: questioning whether to tell God; implying presumption is dangerous; comparison to being swallowed up).
Where interpretation differs
Some read “darkness” mainly as ignorance: people lack the insight and perspective needed to argue with God. Others hear it as trouble or confusion—the distress of suffering that clouds judgment. A third option keeps the weather setting in view: darkness like storm-darkness, reinforcing that creation itself can overwhelm human clarity.
There is also a smaller question about who “us” refers to. It can mean Elihu aligning himself with all humans (“we”), or Elihu speaking rhetorically as a representative voice within the debate.
Why the disagreement exists
The passage uses compact poetic images without explaining them. “Darkness” () can point to limited knowledge, emotional disorientation, or the literal darkening that accompanies storms in the surrounding context. The questions in v. 20 are also rhetorical, so readers differ on how sharp the warning is meant to be.
What this passage clearly contributes
The text adds a focused claim inside Job’s wider argument: there is a real mismatch between God’s understanding and human ability to formulate a confident case. Elihu’s warning does not deny that humans speak to God in general; it targets the posture of pressing a lawsuit-like argument when clarity is lacking. The “swallowed up” image underlines that reckless speech toward God is portrayed as self-endangering, not as a neutral exercise in debate.