In famine he shall redeem thee - That is, will deliver thee from death. On the meaning of the word "redeem," see the notes at Isaiah 43:1, Isaiah 43:3.

From the power of the sword - Margin, as in Hebrew "hands." That is, he should not be slain by armed men. A mouth is often attributed to the sword in the Scriptures, because it devours; "hands" are attributed to it here, because it is by the hand that we perform an undertaking, and the sword is personified, and represented as acting as a conscious agent; compare Ezekiel 35:5, margin. The meaning is that God would protect those who put their trust in him, in times of calamity and war. Doubtless Eliphaz had seen instances enough of this kind to lead him to this general conclusion, where the pious poor had been protected in a remarkable manner, and where signal deliverances had been vouchsafed to the righteous in danger.

Job 5:20 Parallel Commentaries

Letter xxxii (A. D. 1132) to Thurstan, Archbishop of York
To Thurstan, Archbishop of York Bernard praises his charity and beneficence towards the Religious. To the very dear father and Reverend Lord Thurstan, by the Grace of God Archbishop of York, Bernard, Abbot of Clairvaux, wishes the fullest health. The general good report of men, as I have experienced, has said nothing in your favour which the splendour of your good works does not justify. Your actions, in fact, show that your high reputation, which fame had previously spread everywhere, was neither …
Saint Bernard of Clairvaux—Some Letters of Saint Bernard, Abbot of Clairvaux

Afflictions and Death under Providence. Job 5:6-8.
Afflictions and death under Providence. Job 5:6-8. Not from the dust affliction grows, Nor troubles rise by chance; Yet we are born to cares and woes; A sad inheritance! As sparks break out from burning coals, And still are upwards borne So grief is rooted in our souls, And man grows lip to mourn. Yet with my God I leave my cause, And trust his promised grace; He rules me by his well-known laws Of love and righteousness. Not all the pains that e'er I bore Shall spoil my future peace, For death …
Isaac Watts—The Psalms and Hymns of Isaac Watts

'All Things are Yours'
'They fought from heaven; the stars in their courses fought against Sisera.'--JUDGES v. 20. 'For thou shalt be in league with the stones of the field: and the beasts of the field shall be at peace with thee.'--Job v. 23. These two poetical fragments present the same truth on opposite sides. The first of them comes from Deborah's triumphant chant. The singer identifies God with the cause of Israel, and declares that heaven itself fought against those who fought against God's people. There may be …
Alexander Maclaren—Expositions of Holy Scripture