sn “Heart” is a metonymy of subject; it signifies the ability to make decisions, if not the decisions themselves.

sn “Hand” in this passage is a personification; the word is frequently used idiomatically for “power,” and that is the sense intended here.

tn “Channels of water” (פַּלְגֵי, palge) is an adverbial accusative, functioning as a figure of comparison—“like channels of water.” Cf. NAB “Like a stream”; NIV “watercourse”; NRSV, NLT “a stream of water.”

sn The farmer channels irrigation ditches where he wants them, where they will do the most good; so does the Lord with the king. No king is supreme; the Lord rules.