Passage
I will praise thee for ever, because thou hast done it: and I will wait on thy name, for it is good in the sight of thy saints.
I will praise thee for ever, because thou hast done it: and I will wait on thy name, for it is good in the sight of thy saints.
Psalms 51:9 Behold the man that made not God his helper: But trusted in the abundance of his riches: and prevailed in his vanity.
Psalms 51:10 But I, as a fruitful olive tree in the house of God, have hoped in the mercy of God for ever, yea for ever and ever.
Psalms 51:11 I will praise thee for ever, because thou hast done it: and I will wait on thy name, for it is good in the sight of thy saints.
The verse centers on "praise", "thee", "ever", "thou", "hast", "done", "wait", and "name". It is saying that the verse draws attention to "praise" and "thee", so its meaning should be read from those terms before moving to application.
The prior verse says "But I as a fruitful olive tree...", giving immediate footing for "praise" and "thee". 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 "praise" and "thee" with trust shaped by these words, not by a vague optimism outside the passage.