I'm not sure if these are the Irish lyrics but it is an alternative way to sing it than the lyrics Alen gave you. Enjoy, Cait

A holiday, a holiday, and the first one of the year.
Lord Donald's wife came to the church, the gospel for to hear.
And when the meeting it was o'r she cast her eyes above
And there she saw Little Mattie Groves walking in the crowd.

Come home with me Little Mattie Groves come home with me tonight.
Come home with me Little Mattie Groves and sleep with me til light.

I can't come home an I wont come home and sleep with you tonight.
By the rings on your fingers, I can tell, you are Lord Donald's wife.

And what if I am Lord Donald's wife an' Lord Donald's not at home.
He is now in the far corn fields bringing the yearlings home.

And the servent who was standing by, hearing what was said
He swore Lord Donald, he would know before the sun would set.
And in his haste to carry the news he clenched his fists and ran
And when he came to the broad mill stream he took off his shoes and swam.

Little Mattie Groves he lay down and took a little sleep
And when he awoke Lord Donald was standing at his feet.
Sayin 'how do you like my feather bed and how do you like my sheets?
And how do you like my lady fair who lies in your arms asleep?'
'Oh, well I like your feather bed and well I like your sheets,
But better I like your lady gay who lies in my arms asleep.'

'Get up get up' Lord Donald cried, 'get up as quick as you can.
It'll never be said in fair England that I slew a naked man.'

'Oh I can't get up, I won't get up, I can't get up for my life.
For you have 2 long beaten swords and I've a pocket knife.'

'But it's true I have to beaten swords and they cost me deep in the purse.
But you will have the better of them and I shall have the worse.
And you shall strike the very first blow and strike it like a man.
And I shall strike the very next blow and I'll kill you if I can.'
        
Well Mattie struck the very first blow and he hurt Lord Donald sore.
Lord Donald struck the very next blow and Mattie struck no more.
And then Lord Donald took his wife and he sat her on his knee, saying
'Who do you \like the better of us Mattie Groves or me?'

And then spoke his own dear wife, never did she speak so free.
'I'd rather a kiss form dead m's lips than you in your finery.'

And then Lord Donald he jumped up and down she did fall.
And he struck his wife right through the heart and pinned her against the wall.
'A grave, a grave' Lord Donald cried, 'to put these lovers in.
And one for me for I shall hang, paying for this mortal sin.'

A holiday a holiday and the last one of his life.
Little Mattie Groves went to the church where he met Lord Donald's wife.