Passage
[It is he] who giveth great deliverances to his king, and sheweth loving-kindness to his anointed, to David, and to his seed for evermore.
[It is he] who giveth great deliverances to his king, and sheweth loving-kindness to his anointed, to David, and to his seed for evermore.
Psalms 18:48 Who hath delivered me from mine enemies: yea, thou hast lifted me up above them that rose up against me; from the man of violence hast thou delivered me.
Psalms 18:49 Therefore will I give thanks to thee, Jehovah, among the nations, and will sing psalms to thy name.
Psalms 18:50 [It is he] who giveth great deliverances to his king, and sheweth loving-kindness to his anointed, to David, and to his seed for evermore.
The verse centers on "giveth", "great", "deliverances", "king", "sheweth", "loving-kindness", "anointed", and "david". It is saying that the verse draws attention to "giveth" and "great", so its meaning should be read from those terms before moving to application.
The prior verse says "Therefore will I give thanks to thee...", giving immediate footing for "giveth" and "great". 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 "giveth" and "great" with trust shaped by these words, not by a vague optimism outside the passage.