This is 60s folk song that the Dominican’s Praise to God parish hymn book got from the Young People’s Folk Hymnal, who presumbaly got it from the Franciscan’s release by Sebastian Temple. Mary at Godsongs is all over the Folk Mass era and as always provides the salient background to this song.
The text is here. As a prayer for peace the words have not aged I’m afraid. The collection at GIA is your best bet for the sheet music.
BIAB and 6/8 is usually going to come out Irish, which in this case is a plus – there is a real chance of dreariness otherwise.
The With Joyful Lips people changed the setting:
With Joyful Lips is downloadable on the internet and is the ultimate cut and paste job. They suggest that the author of this text is unknown – I have seen it called traditional elsewhere – and it is set there to a tune by Manuel De Souza.