Hello, and thanks in advance for the assistance. A while back I inquired about this on another forum, and was thrilled to get some help. I delayed getting the tattoo, and now the site is gone.
What I am looking for apparently does not translate easily, so I'll explain my intent and go with the closest variant.
In the song "The Minstrel Boy" there is a line "one sword at least thy rights shall guard" and "one faithful harp shall praise thee".
If I recall, it was previously suggested to go with "to guard you" and "to praise you sweetly" (?) I hope to put each line on (2) tattoos of a sword, and a harp.
I appreciate your help, it is time to get these done.

Your request is a bit confusing, but here's one way to say what I think you're asking for:

Chun do chearta a chosaint
[In order] to guard your rights

Chun tusa a mholadh go binn
[In order] to praise you sweetly

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I'm not a native (or entirely fluent) speaker, so be sure to wait for confirmations/corrections, especially for tattoos.

I apologize for the confusion, and thank you for your response. If possible, I'd like the two phrases to translate as the song lyrics quoted ("thy rights shall guard" and "shall praise thee"), but I understand if it needs to be changed.

For it to make sense in Irish, I think you'll need to add a pronoun as the subject in each case, as in:

Cosnóidh sé do chearta.
It shall guard/defend your rights.

Molfaidh sé thú.
It shall praise you.

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I'm not a native (or entirely fluent) speaker, so be sure to wait for confirmations/corrections, especially for tattoos.

But where are the sword and the harp, surely they must fit in here somewhere ?
Is this any good ?

Cosnóidh aon claíomh amháin do chearta ar a laghad.

Molfaidh aon cláirseach dhílis amháin thú.

to clarify, the sword and harp would be pictured, as the tattoo. The words would be almost like labels for each.

A harp (cláirseach, cruit) is feminine in Irish, so "sé" (he) isn't the correct pronoun but "sí" (she).
Molfaidh sí thú.

Thank you all very much. I truly appreciate it!

Yes, if the harp is being pictured such that it is clearly referenced, then the pronoun should change.

If you still want the "sweetly" part of it, you could use:
Molfaidh sí thú go binn

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I'm not a native (or entirely fluent) speaker, so be sure to wait for confirmations/corrections, especially for tattoos.

Sorry to jump in here late, but the Minstrel Boy has an Irish language version. I have heard it and sung it before.
I don't know if I can remember all of it but here is what I can recall:

Do thriall chun catha óglach na rann
i lár namhad Éireann ársa
Is lann a athair fáiscthe air go teann
In éineacht lena chláirseach

"A Thír na nDán!" arsa an laoch cheoil grinn
"Dá mbeadh an saol do do dhaoradh,
Tá aon chruit amháin le do mholadh go binn,
is aon lann amháin le do shaoradh!"

I guess I did remember it all, didn't I...

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ЯГОН ТОҶИК НЕСТ ИНҶО???