John the Apostle
1 John 1:5BSB·traditional attribution

And this is the message we have heard from Him and announce to you: God is light, and in Him there is no darkness at all.

Geneva Bible Notes Reformed

This then is the message which we have heard of him, and declare unto you, that God is light, and in him is no darkness at all. (3) Now he enters into a question, by which we may understand that we are joined together with Christ, that is, if we are governed with his light, which is perceived by the ordering of our life.

John Calvin Reformed

5 This then is the message, or promise. I do not disapprove of the rendering of the old interpreter, “This is the annunciation,” or message; for though ἐπαγγελία means for the most part a promise, yet, as John speaks here generally of the testimony before mentioned, the context seems to require the other meaning, except you were to give this explanation, “The promise which we...

William Burkitt Anglican

That is, "This is the sum and substance of the gospel of Christ's doctrine, and our message, to teach us to know what God is, namely light, that is,a being of infinite knowledge, wisdom, and purity; and that there is no darkness in him, no darkness of error, no darkness of ignorance, no darkness of falsehood, impunity, and sin, found with him, or can be...