American Standard Version (ASV):
For I know that in me, that is, in my flesh, dwelleth no good thing: for to will is present with me, but to do that which is good [is] not.
King James Version (KJV):
For I know that in me (that is, in my flesh,) dwelleth no good thing: for to will is present with me; but [how] to perform that which is good I find not.