First reading Apocalypse 21:9-14

He showed me Jerusalem, the holy city, coming down from God out of heaven

The angel came to speak to me, and said, ‘Come here and I will show you the bride that the Lamb has married.’ In the spirit, he took me to the top of an enormous high mountain and showed me Jerusalem, the holy city, coming down from God out of heaven. It had all the radiant glory of God and glittered like some precious jewel of crystal-clear diamond. The walls of it were of a great height, and had twelve gates; at each of the twelve gates there was an angel, and over the gates were written the names of the twelve tribes of Israel; on the east there were three gates, on the north three gates, on the south three gates, and on the west three gates. The city walls stood on twelve foundation stones, each one of which bore the name of one of the twelve apostles of the Lamb.
 

Responsorial Psalm 144(145):10-13a,17-18

Your friends, O Lord, make known the glorious splendour of your reign..
 
All your creatures shall thank you, O Lord,
  and your friends shall repeat their blessing.
They shall speak of the glory of your reign
  and declare your might, O God.
 
They make known to men your mighty deeds
  and the glorious splendour of your reign.
Yours is an everlasting kingdom;
  your rule lasts from age to age.
 
The Lord is just in all his ways
  and loving in all his deeds.
He is close to all who call him,
  who call on him from their hearts.
 

Gospel John 1:45-51

You will see heaven laid open, and the Son of Man

Philip found Nathanael and said to him, ‘We have found the one Moses wrote about in the Law, the one about whom the prophets wrote: he is Jesus son of Joseph, from Nazareth.’ ‘From Nazareth?’ said Nathanael ‘Can anything good come from that place?’ ‘Come and see’ replied Philip. When Jesus saw Nathanael coming he said of him, ‘There is an Israelite who deserves the name, incapable of deceit.’ ‘How do you know me?’ said Nathanael. ‘Before Philip came to call you,’ said Jesus ‘I saw you under the fig tree.’ Nathanael answered, ‘Rabbi, you are the Son of God, you are the King of Israel.’ Jesus replied, ‘You believe that just because I said: I saw you under the fig tree. You will see greater things than that.’ And then he added ‘I tell you most solemnly, you will see heaven laid open and, above the Son of Man, the angels of God ascending and descending.’