NET
9 Your bow is ready for action; you commission your arrows. Selah. You cause flash floods on the earth’s surface.
Darby
9 Thy bow was made naked, The rods [of discipline] sworn according to [thy] word. Selah. Thou didst cleave the earth with rivers.
KJV
9 Thy bow was made quite naked, [according] to the oaths of the tribes, [even thy] word. Selah. Thou didst cleave the earth with rivers.