It is NOT enough to just BELIEVE in the only begotten Son JESUS CHRIST as it written in (John 3:16-18), God has also commanded that we BELIEVE in his Son JESUS CHRIST and LOVE ONE ANOTHER.
“[AND THIS IS HIS COMMANDMENT], That [WE SHOULD BELIEVE ON THE NAME OF HIS SON JESUS CHRIST, AND LOVE ONE ANOTHER], as he gave us commandment” (1 John 3:23).
“[AND HE THAT KEEPETH HIS COMMANDMENTS DWELLETH IN HIM], and he in him. And hereby we know that he abideth in us, by the Spirit which he hath given us” (1 John 3:23-24).
“[AND HEREBY WE DO KNOW THAT WE KNOW HIM, IF WE KEEP HIS COMMANDMENTS]. He that saith, [I KNOW HIM, AND KEEPETH NOT HIS COMMANDMENTS, IS A LIAR, AND THE TRUTH IS NOT IN HIM]. But whoso keepeth his word, in him verily is the love of God perfected: hereby know we that we are in him” (1 John 2:3-5).
“[BELOVED, IF GOD SO LOVED US, WE OUGHT ALSO TO LOVE ONE ANOTHER]. No man hath seen God at any time. If we love one another, God dwelleth in us, and his love is perfected in us. Hereby know we that we dwell in him, and he in us, because he hath given us of his Spirit” (1 John 4:11-13).