Psalms 38:2

For Thine arrows stick fast in me, and Thy hand presseth me sore.

God’s arrows

Those arrows commonly are either wicked men or devils, whom God sendeth forth to afflict His own children, sharp as arrows, light and swift as arrows, and ready to do harm to God’s saints; or else sickness, poverty, infamy, and such other afflictions, whereby our most gracious Father thinketh most fit to subdue our vile corruption: all which, albeit in their own nature they are evil, yet God can convert and turn them to the utility and profit of His own children. As a physician can use the most poisionable and venomous herbs to cure the most desperate diseases; yea, the flesh of the dead serpent, to cure the wound gotten by the living serpent: so God can convert and turn the mischievous machinations of our enemies to our salvation. (A. Symson.)