Passage
Cast me not forth from Thy presence, And Thy Holy Spirit take not from me.
Cast me not forth from Thy presence, And Thy Holy Spirit take not from me.
Psalms 51:9 Hide Thy face from my sin. And all mine iniquities blot out.
Psalms 51:10 A clean heart prepare for me, O God, And a right spirit renew within me.
Psalms 51:11 Cast me not forth from Thy presence, And Thy Holy Spirit take not from me.
Psalms 51:12 Restore to me the joy of Thy salvation, And a willing spirit doth sustain me.
Psalms 51:13 I teach transgressors Thy ways, And sinners unto Thee do return.
The verse centers on "Spirit", "cast", "forth", "presence", "holy", and "take". It is saying that the verse draws attention to "Spirit" and "cast", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 10's "A clean heart prepare for me O..." into verse 12's "Restore to me the joy of Thy...", so "Spirit" and "cast" 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 "Spirit" and "cast" with trust shaped by these words, not by a vague optimism outside the passage.