Passage
Jehovah preserveth thee from all evil, He doth preserve thy soul.
Jehovah preserveth thee from all evil, He doth preserve thy soul.
Psalms 121:5 Jehovah <FI>is<Fi> thy preserver, Jehovah <FI>is<Fi> thy shade on thy right hand,
Psalms 121:6 By day the sun doth not smite thee, Nor the moon by night.
Psalms 121:7 Jehovah preserveth thee from all evil, He doth preserve thy soul.
Psalms 121:8 Jehovah preserveth thy going out and thy coming in, From henceforth even unto the age!
The verse centers on "jehovah", "preserveth", "thee", "evil", "doth", and "soul". It is saying that the verse draws attention to "jehovah" and "preserveth", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 6's "By day the sun doth not smite..." into verse 8's "Jehovah preserveth thy going out and thy...", so "jehovah" and "preserveth" 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 "jehovah" and "preserveth" with trust shaped by these words, not by a vague optimism outside the passage.