Hmmm. I gather the original language is Hebrew, but it's written in rather strange phonetics.
I found one translation of the lyrics at http://jgospel.net/faith/hymns/the-isaacs-halleluyah._gc74027.aspx:

Halleluja, la o lam
Halleluja, ya shi ru ku lam
Be mi la a hat bo de da
Ha lev ma le ba ha mon to da
Ve ho lem gam hu ei ze o lam nif la

Halleluja, im ha shir
Halleluja, al yom she me ir
Halleluja, al ma she ha ya, ya
U ma she od lo ha ya, Halleluja

Hallelujah, day by day
Hallelujah, don't throw it away
Flying spreads her wings high to try
To free again like a butterfly
Come along and sing with us, Hallelujah

Hallelujah, sounds of love
Hallelujah, the sunshine above
Hallelujah, the bells will go ringing
And echo from dawn 'till night
Hallelujah

Hallelujah, hand in hand
Hallelujah, all over the land
Hallelujah, let's try from the start
And sing it with all our heart
Hallelujah

Halleluja, im ha shir
Halleluja, al yom she me ir
Halleluja, al ma she ha ya, ya
U ma she od lo ha ya, Halleluja

Hallelujah, the bells will go ringing
And Echo from dawn 'till night
Hallelujah

Is this correct? I dunno.

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There's a Gaither recording of the song with lyrics and translation here:

https://www.youtube.com/watch?v=30sY4Mhvhr8

And here's a recording by the Isaacs (with lyrics):

https://www.youtube.com/watch?v=pra__-i_n6s