Many in ages of time have said, “I believe in God.” But it is not enough to believe in God. James, the brother of Jesus, put this into perspective when he said, “Thou believest that there is one God; thou doest well: the devils also believe, and tremble” (James 2:19).
To believe in God and not believe in the Son of God, Jesus Christ is to not believe God; the word of God (John 3:16-18).
Jesus is a human, and God has given him authority over all humankind and angels. Therefore, only those called and chosen who do believe in Jesus, the Son of God, whom God has put all things under, will inherit the next world without an end (Isaiah 45:17) (Ephesians 3:21).
King Jesus expressly said: “Let not your heart be troubled: ye believe in God, believe also in me” (John 14:1).
“For the Father judgeth no man, but hath committed all judgment unto the Son: That all men should honor the Son, even as they honor the Father. He that honoreth not the Son honoreth not the Father which hath sent him. For as the Father hath life in himself; so hath he given to the Son to have life in himself; and hath given him authority to execute judgment also, because he is the Son of man” (John 5: 22–23, 26–27).
“These words spake Jesus, and lifted up his eyes to heaven, and said, Father, the hour is come; glorify thy Son, that thy Son also may glorify thee. As thou hast given him power over all flesh, that he should give eternal life to as many as thou hast given him. And this is life eternal, that they might know thee the only true God, and Jesus Christ, whom thou hast sent” (John 17:1-3).