First reading Isaiah 66:10-14

Towards Jerusalem I send flowing peace, like a river

Rejoice, Jerusalem,
be glad for her, all you who love her!
Rejoice, rejoice for her,
all you who mourned her!
 
That you may be suckled, filled,
from her consoling breast,
that you may savour with delight
her glorious breasts.
 
For thus says the Lord:
Now towards her I send flowing
peace, like a river,
and like a stream in spate
the glory of the nations.
 
At her breast will her nurslings be carried
and fondled in her lap.
Like a son comforted by his mother
will I comfort you.
And by Jerusalem you will be comforted.
 
At the sight your heart will rejoice,
and your bones flourish like the grass.
To his servants the Lord will reveal his hand.
 

Responsorial Psalm 130(131)

Keep my soul in peace before you, O Lord.
 
O Lord, my heart is not proud
  nor haughty my eyes.
I have not gone after things too great
  nor marvels beyond me.
 
Truly I have set my soul
  in silence and peace.
A weaned child on its mother’s breast,
  even so is my soul.
 
O Israel, hope in the Lord
  both now and forever.
 

Gospel Matthew 18:1-5

Unless you become like little children you will not enter the kingdom of heaven

The disciples came to Jesus and said, ‘Who is the greatest in the kingdom of heaven?’ So he called a little child to him and set the child in front of them. Then he said, ‘I tell you solemnly, unless you change and become like little children you will never enter the kingdom of heaven. And so, the one who makes himself as little as this little child is the greatest in the kingdom of heaven.
  ‘Anyone who welcomes a little child like this in my name welcomes me.’