Shared ground
These verses picture an ideal reign whose effects last as long as the normal order of creation (“sun” and “moon”). The text’s explicit claims are that reverence toward “you” continues through all , the king’s presence works like life-giving rain, the righteous flourish during his days, and peace becomes abundant and enduring.
The rain images are not about force or conquest but about renewal: gentle, widespread, and necessary for life in an agrarian setting. The result is a society where upright people thrive and “peace” is more than a pause in conflict—it is a stable, well-supplied wellbeing.
Where interpretation differs
Who is “they” in v. 5? Some read “they” as the king’s subjects (Israel). Others take it more broadly as many peoples, in line with the psalm’s wider horizon of blessing.
Who is addressed by “fear you”? Many read “you” as God, so the prayer is that the king’s rule promotes lasting reverence toward God. Others argue the line may be directed toward the king (or shift between God and king), so it is about enduring loyalty and awe toward the ruler.
How literal is the sun/moon time language? Some treat it as poetic way of saying “for a very long time.” Others hear a stronger claim: the prayer reaches beyond any ordinary reign, hinting at an unending kingdom.
Why the disagreement exists
The passage shifts pronouns quickly (“they…you…he…his”), and poetry often compresses meaning without spelling out the exact referent. Also, “sun and moon” can function either as vivid exaggeration or as language that intentionally stretches toward the idea of permanence.
What this passage clearly contributes
Psalm 72:5–7 links good kingship with durable reverence, land-wide renewal, and a public order where the righteous flourish and peace multiplies. It presents political leadership as accountable to God and as measured by the life it sustains—like rain that makes growth possible—rather than by spectacle or domination. The text contributes a durable vision: the best rule is life-giving, and its strongest social fruit is abundant, long-lasting peace (cf. Psalm 72:7).