Psalm 118:26
Blessed be he that cometh in the name of the Lord: we have blessed you out of the house of the Lord.
Cross-reference
Matthew 21:9 quotes 'Blessed is he who comes in the name of the Lord' from Psalm 118:26, applied to Jesus.
In Matthew 23:39, Jesus quotes this verse and applies it to himself as the coming Messiah whom Israel will one day welcome.
In Mark 11:9, the crowd shouts this verse as Jesus enters Jerusalem, directly applying the psalm to him as the coming king.
In Luke 19:38, the crowd quotes this verse but calls Jesus 'the King' — identifying him explicitly as the blessed one from the psalm.
In John 12:13, the crowd quotes this verse while waving palm branches — directly applying the psalm to Jesus at his triumphal entry.
Luke 13:35 directly quotes this verse as Jesus laments Jerusalem — the blessing becomes a prophecy of rejection and coming judgment.