Hebrews 3:12

12.Take heed, (or See,) brethren, lest there be at any time in any of you a wicked heart of unbelief, etc. I have preferred to retain literally what the Apostle states, rather than to give a paraphrase as to the wicked or depraved heart of unbelief, by which he intimates that unbelief would be connected with depravity or wickedness, if after having received the knowledge of Christ they departed from his faith. For he addressed them who had been imbued with the elements of Christianity; hence he immediately added, By departing; for the sin of defection is accompanied with perfidy. (62)

“The departing,” etc .; ἐν τῶ is rendered “by” by Macknight: it is considered by Grotius to be for εἰς τὸ, which word makes the meaning more evident, “so as to depart,” etc. — Ed.