I. THE COMMANDMENT EXPLAINED (Vv. 7-8)

The commandment is explained in:

(a.) The old commandment retained.

(b.) The new commandment revealed.

II. THE COMMANDMENT APPLIED. (Vv. 9-11)

John applies the commandment in:

(a.) The test of love.

John argues:

1. Hate is evidence of darkness.

2. Love is evidence of light.

3. The only cure for blindness.