Blessed is he who comes in the name of the Lord

Matthew 23:37-39
 “Jerusalem, Jerusalem, you who kill the prophets and stone those sent to you, how often I have longed to gather your children together, as a hen gathers her chicks under her wings, and you were not willing. Look, your house is left to you desolate.  
For I tell you, you will not see me again until you say, ‘Blessed is he who comes in the name of the Lord.’[Psalm 118:26]”
Why?
Jesus may be predicting the destruction of the city, Jerusalem.
Jesus will return in glory and judgment.
When people say Blessed is he who comes in the name of the Lord, they acknowledged Jesus is the Lord and welcome Jesus.
Many people won't listen to the gospel, some are because of bad witness of Christian, some are caused by their stubborn heart.
How?
Jesus is the fountain of blessing, turn to Jesus will be blessed all his life.