Here knowledge is spoken of as if it were an object that someone could grasp and keep for himself. (See: [[rc://en/ta/man/translate/figs-metaphor]])
# The righteous
Possible meanings are 1) any righteous person or 2) "Yahweh the one who is righteous."
# watches
"pays careful attention to"
# he brings wicked people to disaster
Here disaster is spoken of as if it were a place that someone could be brought to. AT: "he destroys them" (See: [[rc://en/ta/man/translate/figs-metaphor]])