I tell you the truth, you cannot see the kingdom of God unless you are born again.  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.”  The wind blows wherever it pleases.  You hear its sound but you cannot tell where it comes from or where it is going.  So it is with everyone born of the Spirit. 
John 3:3,6-8

God is spirit and you must worship him in spirit and in truth.  John 4:24

If you love me, you will obey what I command.  I will ask the Father and he will give you another Counselor to be with you forever, the Spirit of Truth.  John 14:15-17

You will be baptized with the Holy Spirit.  Acts 11:16

And you will receive power when the Holy Spirit comes on you and you will be my witness to the ends of the earth.  Acts 1:8

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

I am the resurrection and the life.  If you believe in me, you will live even though you die and if you live and believe in me, you will never die.  John 11:25-26

If you keep my words, you will never see everlasting death.  John 8:51

I tell you the truth, if you hear my words and believe in him who sent me, you have everlasting life and will not be condemned.  You have crossed over from death to life.  John 5:24