A.T. Robertson Commentary John 15:24

"If I had not done among them the works which none other did, they had not had sin: but now have they both seen and hated both me and my Father." — John 15:24 (ASV)

They have both seen and hated (κα εωρακασιν κα μεμισηκασιν). Perfect active indicative of οραω and μισεω, permanent attitude and responsibility. The "world" and the ecclesiastics (Sanhedrin) had united in this attitude of hostility to Christ and in reality to God.