Shared ground
These lines picture praise as something carried by memory and speech across time. The explicit claim is that “one generation” tells the next about God’s “works” and “mighty acts” (v.4), and that this telling is ongoing rather than a one-time event. The passage also pairs public talk (“they… speak… utter… sing,” vv.6–7) with an individual voice (“I will meditate… I will declare,” vv.5–6). Praise here is not only emotion; it is communicated remembrance.
The content of the praise is also clear in the text: God’s acts are powerful and awe-inspiring (vv.4, 6), his goodness is “great” and worth remembering (v.7), and his “righteousness” is something the community sings about (v.7). The speaker’s “meditate” (v.5) shows that private reflection supports public testimony.
Where interpretation differs
Who is “one generation” and “men/people”? Some read the language as primarily family-to-family teaching (parents to children). Others read it as the whole worshiping community passing on a shared story in gathered settings. The text itself can fit both, since it speaks broadly of generations and “people” speaking.
What “works” are being praised? Some take “works” and “mighty acts” mainly as major saving events in Israel’s story. Others include creation and daily care as part of God’s works. The passage does not narrow the category; it emphasizes that God’s actions are memorable and worth repeating.
What does “righteousness” mean here? Some hear “righteousness” mainly as God’s moral rightness and just rule. Others hear it mainly as God’s faithfulness to what he has promised and to his people. Either way, the text presents “righteousness” as a reason for praise, not as an abstract concept.
Why the disagreement exists
The key terms are broad and poetic rather than technical. “Generation,” “works,” and “righteousness” can each be understood in more than one normal way, and the psalm does not provide a specific historical episode to lock the meaning to one event. The shifting voices (“I” and “they”) also leave open whether the focus is household instruction, public worship, or both.
What this passage clearly contributes
This section contributes a model of praise as multi-voiced and time-spanning: remembrance becomes speech, and speech becomes song. Explicitly, it links God’s past deeds to present proclamation (vv.4, 6–7) and links inner reflection to outward declaration (vv.5–6). Theologically by inference, it suggests that the community’s continuity depends in part on shared memory of who God is and what he has done, kept alive through repeated telling and celebrating (compare Deuteronomy 6:6–9).