1 Jn 5:1-2

1 EVERYONE WHO believes (adheres to, trusts, and relies on the fact) that Jesus is the Christ (the Messiah) is a born-again child of God; and everyone who loves the Father also loves the one born of Him (His offspring).

2 By this we come to know (recognize and understand) that we love the children of God: when we love God and obey His commands (orders, charges) — [when we keep His ordinances and are mindful of His precepts and His teaching].