As long as Moses held up his hands, the Israelites were winning, but whenever he lowered his hands, the Amalekites were winning.@Exodus 17:11
portrait
William Cowper (1731-1800)

William Cowper, Olney Hymns (London: W. Oliver, 1779), number 60.

Breslau As Hymnodus Sacer (Leipzig, Germany: 1625) (🔊 pdf nwc).

illustration
Moses Holds Up His Rod

What various hindrances we meet
In coming to a mercy seat;
Yet who that knows the worth of prayer,
But wishes to be often there.

Prayer makes the darkened cloud withdraw,
Prayer climbs the ladder Jacob saw;
Gives exercise to faith and love,
Brings every blessing from above.

Restraining prayer, we cease to fight;
Prayer makes the Christian’s armor bright;
And Satan trembles, when he sees
The weakest saint upon his knees.

While Moses stood with arms spread wide,
Success was found on Israel’s side;
But when through weariness they failed,
That moment Amalek prevailed.

Have you no words? Ah, think again,
Words flow apace when you complain;
And fill your fellow creature’s ear
With the sad tale of all your care.

Were half the breath thus vainly spent,
To Heav’n in supplication sent;
Your cheerful song would oft’ner be,
Hear what the Lord has done for me.