Hymn Lyrics Search - Name That Hymn

Need help with the first line:

MANY ARE THEY ??? (INCREASED THAT TROUBLE ME?)
MANY ARE THEY THAT RISE UP AGAINST ME
MANY THERE BE WHICH SAY OF MY SOUL
THERE IS NO HELP FOR HIM OF GOD
...................................................
Thank you for your help.
iseedelight

Chorus

BUT THOU OH LORD ART A SHIELD FOR ME
MY GLORY AND THE LIFTER OF MY HEAD

THOU OH LORD ART A SHIELD FOR ME
MY GLORY AND THE LIFTER OF MY HEAD

THOU OH LORD ART A SHIELD FOR ME
MY GLORY AND THE LIFTER OF MY HEAD

THOU OH LORD ART A SHIELD FOR ME
MY GLORY AND THE LIFTER OF MY HEAD

Lord, how are they increased that trouble me is the first line...based on Ps 3.