Shared ground
Psalm 12:6–7 sets God’s speech over against the dishonest, manipulative talk described earlier in the psalm. Explicitly, the text says Yahweh’s “words” are flawless and compares them to silver refined until all impurity is removed. The “seven times” image stresses completeness, not a lab process.
Verse 7 responds to that pure promise with confidence that Yahweh will “keep” and “preserve” “them” from “this generation” with a long time horizon (“forever”). The basic movement is clear: because Yahweh’s words are trustworthy, Yahweh’s protection can be expected.
Where interpretation differs
A real question is what “them” refers to in verse 7.
- Some read “them” as God’s words/promises: God will keep his words safe and unchanged, despite a culture of lies.
- Others read “them” as the vulnerable people mentioned earlier in the psalm (the oppressed): God will guard those people from the corrupt society around them.
A second, smaller question is what “this generation” means. It can mean the psalmist’s immediate social setting, but it can also function as a recurring kind of society marked by prideful, harmful speech.
Why the disagreement exists
The Hebrew pronoun “them” is brief and can point back either to the nearby “words” (v.6) or to the people Yahweh promised to act for (v.5). Both links fit the flow of thought in Psalm 12: God speaks (v.5), God’s speech is pure (v.6), and therefore God will protect what matters (v.7). The poem does not spell out the referent.
What this passage clearly contributes
These verses contribute a strong claim about the character of Yahweh’s speech: it is wholly dependable (explicit textual claim). From that, the psalm draws a tight connection between promise and protection: Yahweh’s flawless word grounds confidence that Yahweh will keep and preserve “them” against a corrupt social environment over time (explicit claim), even if the exact identity of “them” is debated. Related passages that echo this theme include Psalm 12:5 and Psalm 119:140.