I like looking for the origin of what are these days obscure hymns in the Praise To God Hymnal, which the editors found outside the major hymnbooks that were already available.
This song was taken from the Hymnal for Young Christians, and if you are quick about Amazon has a second hand copy. The song itself is an old text by Charles Wesley with a new setting in 1966 by Rev Ian Mitchell, an Episcopalian minister, active in their Folk Mass movement. This article gives a flavour of the times he was a part of.
This text has been set by a few others, Handel anyone, but good luck finding this out of print setting anywhere – hence its posting below. There are variations in the text from version to version – I note the text from PTG.
The instructions were “with vigor”, which I failed to do in one backing, so I did another.
1 Rejoice, the Lord is King:
Your Lord and King adore!
Mortals, give thanks and sing,
And triumph evermore.Refrain
Lift up your heart,
Lift up your voice!
Rejoice, again I say, rejoice! x2
2 The Lord, the Saviour, reigns,
The God of truth and love;
When He had purged our stains,
He took his seat above;Refrain
3 His kingdom cannot fail,
He rules o’er earth and heav’n;
The keys of death and hell
To Christ the Lord are giv’n:Refrain
4 Rejoice in glorious hope!
Our Lord, the Judge shall come
And take His servants up
To their eternal home:Refrain
Someone must have the sheet music in Malaysia and Singapore, as I found some clips: