Whoever Believes (heart acceptance) that Jesus is the Christ, is Born of God

1 John 5
THE NEW BIRTH

WHOSOEVER believes that Jesus is the Christ is born of God (the word “believeth” is not a mere intellectual assent to the fact of the Incarnation, but a heart acceptance of all that is implied in its purpose—the substitutionary death of the Incarnate One for sinners): and every one who loves Him Who begat loves him also who is begotten of Him. (This simply states that those who love God as their Father also love God’s Children.)
2 By this we know that we love the Children of God (we know we love God if we love those who bear His Image), when we love God, and keep His Commandments. (Jesus said the same thing in Jn. 14:15.)
3 For this is the Love of God, that we keep His Commandments: and His Commandments are not grievous. (This is easy to do, providing we look exclusively to the Cross. Otherwise it is impossible [Mat. 11:28–30].)
4 For whatsoever is born of God overcomes the world (if we follow God’s Prescribed Order, we will overcome the world): and this is the victory that overcomes the world, even our Faith. (John is speaking here of Faith in Christ and the Cross, which then gives the Holy Spirit latitude to work within our lives [Rom. 8:1–2, 11].)
5 Who is he who overcomes the world, but he who believes that Jesus is the Son of God? (It is not he who “does,” but who “believes.”)

Swaggart, J. (2005). The Expositor’s Study Bible (pp. 2174–2175). Baton Rouge, LA: Jimmy Swaggart Ministries.