Dan Jones preaching in Wales -- Mae Dan Jones yn pregathu yng Nghymru
LDS HYMNAL ENGLISH TO WELSH HYMN
HYMNAU SAESNEG I'R GYMRAEG

1. The Morning Breaks -- 1. Y Boreu DDaeth
10. Jesus, Lover of My Soul -- Iesu, Cyfaill F'enaid Cu

TRANSLATIONS FROM THE 1852 WELSH HYMNAL INTO ENGLISH


Extras:

Hymn No. 7. Israel, Israel, God is Calling -- 225. Tyred, Tyred i'r DDiangfa


I think this is the right match. The translation is not real close but it's on the same theme and mentions Babylon. It fits the meter and notes of the piece in English.