Passage
A Prayer of Moses, the man of God. Lord, a habitation Thou--Thou hast been, To us--in generation and generation,
A Prayer of Moses, the man of God. Lord, a habitation Thou--Thou hast been, To us--in generation and generation,
Psalms 90:1 A Prayer of Moses, the man of God. Lord, a habitation Thou--Thou hast been, To us--in generation and generation,
Psalms 90:2 Before mountains were brought forth, And Thou dost form the earth and the world, Even from age unto age Thou <FI>art<Fi> God.
Psalms 90:3 Thou turnest man unto a bruised thing, And sayest, Turn back, ye sons of men.
The verse centers on "prayer", "moses", "lord", "habitation", "thou--thou", "hast", "been", and "us--in". It is saying that the verse draws attention to "prayer" and "moses", so its meaning should be read from those terms before moving to application.
The next verse adds "Before mountains were brought forth And Thou...", so "prayer" and "moses" should be read forward into that movement. 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 "prayer" and "moses" with trust shaped by these words, not by a vague optimism outside the passage.