Passage
But thou, O Lord, art most high for evermore.
But thou, O Lord, art most high for evermore.
Psalms 91:7 The senseless man shall not know: nor will the fool understand these things.
Psalms 91:8 When the wicked shall spring up as grass: and all the workers of iniquity shall appear: That they may perish for ever and ever:
Psalms 91:9 But thou, O Lord, art most high for evermore.
Psalms 91:10 For behold thy enemies, O Lord, for behold thy enemies shall perish: and all the workers of iniquity shall be scattered.
Psalms 91:11 But my horn shall be exalted like that of the unicorn: and my old age in plentiful mercy.
The verse centers on "thou", "lord", "most", "high", and "evermore". It is saying that the verse draws attention to "thou" and "lord", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 8's "When the wicked shall spring up as..." into verse 10's "For behold thy enemies O Lord for...", so "thou" and "lord" belong inside that flow. In Psalms context, the local focus is worship, trust, the LORD's kingship, and covenant mercy.
A plain takeaway is to answer the verse's own emphasis on "thou" and "lord" with trust shaped by these words, not by a vague optimism outside the passage.