“But every spirit that does not acknowledge Jesus is not from God. This is the spirit of the antichrist, which you have heard is coming and even now is already in the world.” (I John 4:3 NIV)
Many people believe that you can trust in God without accepting the Biblical Jesus. They believe that God will accept you if you are good and loving to other people regardless of your doctrine.
However, the Bible teaches that you cannot love God and deny that Jesus is the Christ. Jesus is God’s Son, and if you do not love Him you do not love God. Furthermore, humans who truly desire love and goodness cannot deny the Jesus of the Bible, since the Jesus of the Bible is the only human being who ever lived a good and loving life. Those who reject Him do so because they do not want to repent of their sins to the extent that He asks them to. They desire to protect their private sins of selfishness even while pretending to love other people.