Triumphs of mercy.
ARM of the Lord, awake, awake!
Put on thy strength—the nations shake,
And let the world, adoring, see
Triumphs of mercy wrought by thee.
2 Say to the heathen, from thy throne,
I am Jehovah—God alone:
Thy voice their idols shall confound,
And cast their altars to the ground.
3 No more let creature blood be spilt-
Vain sacriﬁce for human guilt!
But to each conscience be applied
The blood that ﬁow’d from Jesus’ side.
OK, William Shrubsole a new one on me. The short bio at hymnary.org says he was extremely interested in missionary work, which explains the emphasis of this hymn.