John the Apostle
1 John 3:3BSB·traditional attribution

And everyone who has this hope in Him purifies himself, just as Christ is pure.

John Calvin Reformed @genevareformer

3 And every man that hath this hope He now draws this inference, that the desire for holiness should not grow cold in us, because our happiness has not as yet appeared, for that hope is sufficient; and we know that what is hoped for is as yet hid.

Matthew Henry Presbyterian @wholebiblehenry

The apostle, having shown the dignity of Christ's faithful followers, that they are born of him and thereby nearly allied to God, now here, I. Breaks forth into the admiration of that grace that is the spring of such a wonderful vouchsafement: Behold (see you, observe) what manner of love, or how great love, the Father hath bestowed upon us, that we should be called...

Commenting on 1 John 3:1-3

John Gill Reformed Baptist @doctorgill

And every man that hath this hope in him,.... Or on him, Jesus Christ; for a true hope of that eternal happiness, which lies in likeness to Christ, and in the vision of him, is only founded on his person, blood, righteousness, and sacrifice: and this hope every man has not, only he who is born again; for this grace is implanted in regeneration, when...