A.T. Robertson Commentary 2 Timothy 4:15

"of whom do thou also beware; for he greatly withstood our words." — 2 Timothy 4:15 (ASV)

Be thou ware also (κα συ φυλασσου). Present middle (direct) imperative of φυλασσω, "from whom keep thyself away."

Withstood (αντεστη). Second aorist active indicative of ανθιστημ, "stood against my words." See 3:8; Galatians 2:11.