The Tree of Life 

Genesis

2:9   In the middle of the garden were the tree of life and the tree of the knowledge of good and evil.  

Revelation

1:3    Blessed is the one who reads the words of this prophecy and blessed are those who hear it and take to heart what is written in it, because the time is near. 

14:13   Blessed are the dead who die in the Lord from now on. Yes, says the Spirit, they will rest from their labor, for their deeds will follow them. (in the tribulation) 

16:15   Behold, I come like a thief. Blessed is he who stays awake and keeps his clothes with him, so that he may not go naked and be shamefully exposed. 

19:9  Then the angel said to me, "Write, 'Blessed are those who are invited to the wedding supper of the Lamb!'" 

20:6   Blessed and holy are those who have part in the first resurrection. The second death has no power over them, but they will be priests of God and of Christ and will reign with him for a thousand years. 

22:7   Behold I am coming soon. Blessed is he who keeps the words of the prophecy of this book.

22:14   Blessed are those who wash their robes, that they may have the right to the tree of life and may go through the gates into the city.