A.T. Robertson Commentary John 10:37

"If I do not the works of my Father, believe me not." — John 10:37 (ASV)

If I do not (ε ου ποιω). Condition of first class, assumed as true, with negative ου, not ε μη=unless.

Believe me not (μη πιστευετε μο). Prohibition with μη and the present active imperative. Either "cease believing me" or "do not have the habit of believing me." Jesus rests his case on his doing the works of "my Father" (του πατρος μου), repeating his claims to sonship and deity.