I'm no singer, but I've always liked this song since hearing the late Hamish Imlach singing it.
I remember it as follows. The only words I'm not sure about are the places mentioned in the final verse, and the adjectives describing "beer" in the second verse.

The Soldier's Prayer

A soldier and a sailor were walking one day
Said the soldier to the sailor, "Come let us pray,
And if we have one prayer, we might as well have ten".
"Let's have a bloody litany", said the sailor , "Amen".

"Now what shall we pray for, let's pray for some beer,
Some glorious , beautiful, wonderful beer.
And if we have one pint, me might as well have ten".
"Let's have a bloody brewery", said the sailor, "Amen".

"Now what shall we pray for, let's pray for a wench.
Glory, O Glory, may she be French.
And if we have one wench, we might as well have ten".
"Let's have a bloody harem," said the sailor , "Amen"

"Now who shall we pray for let's pray for the Queen.
Glory, O Glory, long may she reign
And if she has one child, may she also have ten".
"May she have a bloody regiment", said the sailor, "Amen".

"Now who shall we pray for, let's pray for the Duke.
That wonderful handsome, great smiling plook
And if he loses one hair may he also lose ten".
"May the b*st*rd go baldy", said the sailor, "Amen".

"Now what shall we pray for, let's pray for our peace.
From Cape Town to Belfast, from Glasgow to Greece
And if we have one year, may we also have ten".
"May there never , ever be another war", said the sailor, "Amen"