Very long for an opening line but the whole verse is practically sang on one breath which makes it so difficult to sing at it’s proper speed, so I nominate it.
In the merry month of June from me home I started
Left the girls of Tuam nearly broken hearted
Saluted Father dear, kissed me darling mother
Drank a pint of beer, me grief and tears to smother
Then off to reap the corn, leave where I was born
Cut a stout blackthorn to banish ghosts and goblins
A brand new pair of brogues, rattlin' o'er the bogs
Frightenin' all the dogs on the rocky road to Dublin