I told you often (pollakis elegon). Imperfect active, repetition in Paul s warnings to them.
Even weeping (kai klaioĢn). Deep emotion as he dictated the letter and recalled these recreant followers of Christ (cf. 2Co 2:4).
The enemies of the cross of Christ (tous echthrous tou staurou tou Christou). Either the Judaizers who denied the value of the cross of Christ (Gal 5:11; Gal 6:12, Gal 6:14) or Epicurean antinomians whose loose living gave the lie to the cross of Christ (1Jo 2:4).