David
Psalm 139:17ESV·traditional attribution

How precious to me are your thoughts, O God! How vast is the sum of them!

John Calvin Reformed @genevareformer

PSALM 139 In this Psalm David, that he may dismiss the deceptive coverings under which most men take refuge, and divest himself of hypocrisy, insists at large upon the truth that nothing can elude the divine observation — a truth which he illustrates from the original formation of man, since he who fashioned us in our mother’s womb, and imparted to every member its particular...

Commenting on Psalm 139:1-24

C.H. Spurgeon Reformed Baptist @princeofpreachers

How precious also are thy thoughts unto me, O God! He is not alarmed at the fact that God knows all about him; on the contrary, he is comforted, and even feels himself to be enriched, as with a casket of precious jewels. That God should think upon him is the believer's treasure and pleasure.

Matthew Henry Presbyterian @wholebiblehenry

Here the psalmist makes application of the doctrine of God's omniscience, divers ways. I. He acknowledges, with wonder and thankfulness, the care God had taken of him all his days, Psa 139:17, Psa 139:18. God, who knew him, thought of him, and his thoughts towards him were thoughts of love, thought of good, and not of evil, Jer 29:11.

Commenting on Psalm 139:17-24