I tell you the truth, no one can enter the kingdom of God unless he is born of water and the Spirit.  Flesh gives birth to flesh, but the Spirit gives birth to spirit.  You should not be surprised at my saying, "You must be born again."  John 3:5-7

The Spirit gives life.  The flesh counts for nothing.  The words I speak to you are spirit and they are life.  
John 6:63

Whoever hears my Word and believes in the one who sent me has eternal life and will not be condemned.  They have crossed over from death to life.  John 5:24    

My Father's will is that everyone who looks to the Son and believes in him shall have eternal life and I will raise them up at the last day.  John 6:40

I have come that you might have life and have it more abundantly.  I am the good shepherd.  The good shepherd lays down his life for the sheep.  John 10:10-11

I am the light of the world.  Whoever follows me will never walk in darkness but will have the light of life.  
John 8:12

Enter through the narrow gate.  Wide is the gate and broad is the road that leads to destruction and many enter through it.  But small is the gate and narrow is the road that leads to eternal life and only a few will ever find it.  Matthew 7:13-14

What good is it for you to gain the whole world and lose your very own soul?  Matthew 16:26

I am the way and the truth and the life.  No one comes to the Father except through me.  John 14:6

If anyone acknowledges me publicly here on earth, I will openly acknowledge that person before my Father in heaven. But if anyone denies me here on earth, I will deny that person before my Father in heaven.  
Matthew 10:32-33

Here I am!  I stand at the door and knock.  If you hear my voice and open the door, I will come in and eat with you and you with me.  Revelation 3:20

In my Father's house, there are many rooms.  If it were not so, I would have told you plainly.  I am going there to prepare a place for you.  And if I go and prepare a place for you, I will come back and take you to be with me.  John 14:1-3

I am the resurrection and the life.  Those who believe in me will live even though they die and whoever lives and believes in me will never die.  John 11:25-26

I have told you these things so that in me you will have perfect peace.  In the world, you will have trouble, but take heart!  I have overcome the world.  John 16:33

I am the Alpha and the Omega, the beginning and the end.  To the one who is thirsty, I will give to drink without cost from the spring of the water of life.  Revelation 21:6 

Finally, while he was praying to the Father, Jesus said:

This is eternal life:  That they may know you, the only true God and Jesus Christ whom you have sent.  I have brought you glory on earth by completing the work you gave me to do and now Father, glorify me in your presence with the glory I had with you before the world began.  John 17:3-5

How do you get to heaven?