The Celts
Irish Gaelic:

Hi-ri, Hi-ro, Hi-ri.
Hoireann is O, ha hi, ra ha, ra ho ra.
Hoireann is O, ha hi, ra ha, ra ha ra.
Hi-ri, Hi-ra, Hi-ri.

Saol na saol,
Tus ga Deireadh.
Ta muid Bea
Da Dea.

Saol na saol,
Tъs go deireadh.
Tб muid beo
Go deo.

Hi-ri, Hi-ra, Hi-ri,
Hoireann is O, ho hi, ra ha, ra ha ra.

Translation (English):

Life of lives, (!)
Beginning to the end.
We are alive
Forever.
Life of lives,
Beginning to the end.
We are alive
Forever.

Кельты

Бытие жизней
Начало к концу.
Мы живы
Вечно.

Бытие жизней
Начало к концу.
Мы живы
Вечно.

Literally "life of lives", this really means "forever" or "world without end". It is also the conclusion of the Irish Gaelic version of the "Our Father" prayer.