14 Out of Ephraim was there a root of them against Amalek; after thee, Benjamin, among thy people; out of Machir came down governors, and out of Zebulun they that handle the pen of the writer.
(Judges 5:14a) From Ephraim, he destroyed them in Amalek, that is, Joshua, who was from the tribe of Ephraim, destroyed the strong ones, that is, the enemies of Israel, in Amalek, as it is read in the book of Exodus: 'And Joshua defeated Amalek and his people with the edge of the sword, etc.' (Exodus 17:13). And that the same Joshua was from the tribe of Ephraim is shown in the book of Numbers, where it is said: 'From the tribe of Ephraim, Hoshea the son of Nun' (Numbers 13:9), whom Joshua also calls in the following passages, saying: 'Moses called Hoshea the son of Nun, Joshua.' And after him, that is, Joshua, rising from the tribe of Benjamin, Saul destroyed the people of Amalek, as commanded by the Lord, which Deborah prophesied about Saul in the spirit of prophecy. And this is said according to the figure of speech called prolepsis, that he himself would destroy Amalek, as you have in the Book of Samuel (1 Samuel 14:48). But the phrase 'O Amalek' is not found in the Hebrew text, but the Latin interpreter added it for the sake of clarity.
(Judges 5:14b) From Machir, the leaders descended, and from Zebulun, those who led the army to fight. In Hebrew, it is written: From Machir, the leaders descended, and it is understood, to fight, that is, to overthrow the prince Sisera. And from Zebulun, it is understood, they descended, who led the army. And from the tribe of Levi, and from the tribe of Issachar, it is understood, to fight, that is, to praise and humbly beseech the Lord. Of which, it follows.
Out of Ephraim: The enemies straggling in their flight were destroyed, as they were running through the land of Ephraim, and of Benjamin, which lies after, that is beyond Ephraim: and so on to the very confines of Amalec. Or, it alludes to former victories of the people of God, particularly that which was freshest in memory, when the men of Ephraim and Benjamin, with Aod at their head, overthrew their enemies the Moabites with the Amalecites their allies. See chap. 3.-- Ibid.
[AD 420] Jerome on Judges 5:14
(Judges 5:14b) From Machir, the leaders descended, and from Zebulun, those who led the army to fight. In Hebrew, it is written: From Machir, the leaders descended, and it is understood, to fight, that is, to overthrow the prince Sisera. And from Zebulun, it is understood, they descended, who led the army. And from the tribe of Levi, and from the tribe of Issachar, it is understood, to fight, that is, to praise and humbly beseech the Lord. Of which, it follows.