Shared ground
These verses present a sufferer speaking directly to God, not to inform God but to appeal to God’s full awareness. The text explicitly claims that God “knows” the speaker’s disgrace (reproach, shame, dishonor) and that the enemies are “before” God, meaning their presence and actions are not out of view.
The pain described is both public and internal. The reproach has “broken” the speaker’s heart and left him weighed down. He then reports a social collapse: he searched for pity and for comforters, but no one came.
Finally, the enemies’ treatment is pictured as cruel reversal of hospitality. Instead of food and drink that sustain, he receives “gall” and “vinegar” when thirsty—concrete images that intensify the claim that no real comfort was available from people.
Where interpretation differs
One question is what “before you” implies. Some read it mainly as God’s seeing—nothing about the attackers is hidden. Others hear a stronger legal-note: the enemies stand “before” God as one who can judge their actions.
Another question is how literal verse 21 is. Some take it as a specific remembered act (being offered bitter/sour items). Others see it as poetic portrayal of hostility: when the speaker needed care, he was met with deliberate bitterness.
Why the disagreement exists
The phrases are brief and image-heavy. “Before you” can work in everyday speech (“in your sight”) and also in settings where someone stands before an authority. Likewise, “gall” and “vinegar” can be read as real substances or as vivid symbols of mistreatment, and the psalm does not pause to clarify which level is intended.
What this passage clearly contributes
At the level of explicit claim, the passage ties together three realities: God’s complete knowledge of a person’s humiliation, the deep inner damage caused by public reproach, and the failure (or refusal) of human comfort. As an inference from the argument of the lines, the speaker’s loneliness is not presented as evidence that God is absent; it becomes part of the case brought to the one who does see. The “gall” and “vinegar” image also shows that opposition can target ordinary needs (food and drink), turning expected kindness into intentional harm (cf. Psalm 69:19).