7.  another  . . .  eagle--the  king  of Egypt 
  (Eze  17:15).
  The  "long-winged"  of
  Eze  17:3
  is  omitted,  as  Egypt  had  not  such  a  wide  empire  and  large  armies  as  
  Babylon.
  
         
  vine  . . .  bend  . . .  roots  towards  him--literally,  "thirsted  after
  him  with  its  roots";  expressing  the  longings  after  Egypt  in  the  Jewish
  heart. Zedekiah sought  the  alliance  of  Egypt,  as  though  by  it  he  could
  throw  off  his  dependence  on  Babylon
  (2Ki  24:7,  20;
  2Ch  36:13;  
  Jer  37:5,  7).
  
         
  water  it  by  . . .  furrows  of  . . .  plantation--that  is,  in  the
 garden beds  (Judea)  wherein  (the  vine)  it  was  planted.  Rather,  "by"
  or  "out  of  the  furrows."  It  refers  to  the  waters  of  Egypt,  the  Nile
  being  made  to  water  the  fields  by  means  of  small  canals  or  "furrows";
  these  waters  are  the  figure  of  the  auxiliary  forces  wherewith  Egypt
  tried  to  help  Judah.  See  the  same  figure,
  Isa  8:7.
  But  see  on
  Eze  17:10,
  
  "furrows  where  it  grew."
JFB.
Picture Study Bible