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

Who is it that overcomes the world except the one who believes that Jesus is the Son of God?

John Calvin Reformed @genevareformer

5 Who is he that overcometh the world This is a reason for the previous sentence; that is, we conquer by faith, because we derive strength from Christ; as Paul also says, “I can do all things through him that strengtheneth me,” (Philippians 4:13.) He only then can conquer Satan and the world, and not succumb to his own flesh, who, diffident as to himself, recumbs on Christ’s power alone.

Matthew Henry Presbyterian @wholebiblehenry

I. The apostle having, in the conclusion of the last chapter, as was there observed, urged Christian love upon those two accounts, as suitable to Christian profession and as suitable to the divine command, here adds a third: Such love is suitable, and indeed demanded, by their eminent relation; our Christian brethren or fellow-believers are nearly related to God; they are his children: Whosoever believeth...

Commenting on 1 John 5:1-5

John Gill Reformed Baptist @doctorgill

Who is he that overcometh the world,.... This question carries in it a strong affirmation, that no other person is the conqueror of the world: but he that believeth that Jesus is the Son of God? and this points out what that faith is which obtains the victory over the world; and shows that it is not that trust and confidence which has a man's...