He Makes Wars Cease, Psalm 46:9

He makes wars cease throughout the earth.
He shatters bows and cuts spears to pieces;
he sets wagons ablaze.
-Psalm 46:9

The subject of Psalm 46:
"Happen what may, the Lord's people are happy and secure, this is the doctrine of the Psalm."
"The Song of Holy Confidence."
"It will probably be best remembered as Luther's Psalm."

-Spurgeon

It is recorded that in his darkest moments, Luther would say to his friends, “Come, let us sing the 46th psalm and let them do their worst.” It was this psalm that inspired the great Reformation Hymn, A Mighty Fortress Is Our God.
-Michael Talley

Spurgeon:

The Great Peacemaker, or the principles of the gospel our only hope, for the total abolition of war.

Peace is made two ways; first, by taking up the differences and reconciling the spirits of men; secondly, by breaking the power and taking away all provisions of war from men. The Lord maketh peace by both these ways, or by either of them.

- Joseph Caryl