Passage
The LORD liveth; and blessed be my rock; and let the God of my salvation be exalted.
Psalms 18:46 (KJV)
Nearby Context
Psalms 18:44 As soon as they hear of me, they shall obey me: the strangers shall submit themselves unto me.
Psalms 18:45 The strangers shall fade away, and be afraid out of their close places.
Psalms 18:46 The LORD liveth; and blessed be my rock; and let the God of my salvation be exalted.
Psalms 18:47 It is God that avengeth me, and subdueth the people under me.
Psalms 18:48 He delivereth me from mine enemies: yea, thou liftest me up above those that rise up against me: thou hast delivered me from the violent man.
Study Lenses
The verse centers on "lord", "liveth", "blessed", "rock", "salvation", and "exalted". It is saying that the verse draws attention to "lord" and "liveth", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 45's "The strangers shall fade away and be..." into verse 47's "It is God that avengeth me and...", so "lord" and "liveth" 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 "lord" and "liveth" with trust shaped by these words, not by a vague optimism outside the passage.