1 John 4:15 - If anyone acknowledges that Jesus is the Son of God, God lives in him and he in God.

1 John 4:16 - And so we know and rely on the love God has for us.  God is love.  Whoever lives in love lives in God, and God in him.

John 1:12 - Yet to all who received him, to those who believed in his name, he gave the right to become children of God--

John 11:25 - Jesus said to her, "I am the resurrection and the life.  He who believes in me will live, even though he dies;

John 11:26 - and whoever lives and believes in me will never die.  Do you believe this?"

John 11:27 - "Yes, Lord," she told him, "I believe that you are the Christ, the Son of God, who was to come into the world."

John 20:29 - Then Jesus told him, "Because you have seen me, you have believed; blessed are those who have not seen and yet have believed."

John 20:31 - But these are written that you may believe that Jesus is the Christ, the Son of God, and that by believing you may have life in his name

Mark 11:22 - "Have faith in God," Jesus answered.

Mark 11:23 - "I tell you the truth, if anyone says to this mountain, 'Go, throw yourself into the sea,' and does not doubt in his heart but believes that what he says will happen, it will be done for him."