Passage
How precious are Your thoughts to me, O God! How vast is the sum of them!
How precious are Your thoughts to me, O God! How vast is the sum of them!
Psalms 139:15 My frame was not hidden from You, When I was made in secret, And intricately woven in the depths of the earth;
Psalms 139:16 Your eyes have seen my unshaped substance; And in Your book all of them were written The days that were formed for me, When as yet there was not one of them.
Psalms 139:17 How precious are Your thoughts to me, O God! How vast is the sum of them!
Psalms 139:18 If I should count them, they would outnumber the sand. When I awake, I am still with You.
Psalms 139:19 Oh that You would slay the wicked, O God! O men of bloodshed, depart from me.
The verse centers on "precious", "thoughts", and "vast". It is saying that the verse draws attention to "precious" and "thoughts", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 16's "Your eyes have seen my unshaped substance..." into verse 18's "If I should count them they would...", so "precious" and "thoughts" 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 "precious" and "thoughts" with trust shaped by these words, not by a vague optimism outside the passage.