John Gill's Exposition of the Whole Bible
Jeremiah 16:17
For mine eyes are upon all their ways,.... Not only which they may take to hide themselves from their enemies, and where they should be directed to find them; but their evil ways in which they walked, and which were the cause of their calamities; these, how secret soever they were, were under the eye of God, whose eyes are in every place, and upon all the ways of men, good and bad; though they might flatter themselves, as wicked men sometimes do, that the Lord sees them not, and does not take notice of their iniquities: but, that they might be assured of the contrary, it is added,
they are not hid from my face, neither is their iniquity hid from mine eyes; neither their ways nor their works, their persons nor their actions, could be concealed from the Lord; none can hide himself in secret places, that they should not be seen by him; the darkness and the light are both alike to an omniscient God. The Targum is,
"their iniquities are not hid from before (or from, or the sight of) my Word;''
the essential Word of God; see Hebrews 4:12.