Blessed... — These words of welcome are probably spoken by the Levite in charge, to the procession approaching the gates. According to Rabbinical writings, pilgrim caravans were thus welcomed on their arrival at Jerusalem.
Related Commentaries of Psalms 118:26
Psalms 118:26
26 Blessed be he that cometh in the name of the LORD: we have blessed you out of the house of the LORD.