Psalms 7:13

13. “Unless ye be converted,” He says, “He will brandish His sword” ( ver. 12 ). The Lord Man Himself may be taken to be God’s double-edged sword, that is, His spear, which at His first coming He will not brandish, but hideth as it were in the sheath of humiliation: but He will brandish it, when at the second coming to judge the quick and dead, in the manifest splendour of His glory, He shall flash light on His righteous ones, and terror on the ungodly. For in other copies, instead of, “He shall brandish His sword,” it has been written, “He shall make bright His spear:” by which word I think the last coming of the Lord’s glory most appropriately signified: seeing that is understood of His person, which another Psalm has, “Deliver, O Lord, my soul from the ungodly, Thy spear from the enemies of Thine hand. …

8. “The swords of the enemy have failed at the end” ( ver. 6 ). Not enemies in the plural, but this enemy in the singular. Now what enemy’s swords have failed but the devil’s? Now these are understood to be divers erroneous opinions, whereby as with swords he destroys souls. In overcoming these swords, and in bringing them to failure, that sword is employed, of which it is said in the seventh Psalm, “If ye be not converted, He will brandish His sword.” And peradventure this is the end, against which the swords of the enemy fail; since up to it they are of some avail. Now it worketh secretly, but in the last judgment it will be brandished openly. By it the cities are destroyed. …

Do not then when hearing the Word, think of it lightly. For “He is sharper,” he says, “than a sword.” Observe His condescension; and hence consider why the prophets also needed to speak of saber and bow and sword. “If ye turn not,” it is said, “He will whet His sword, He hath bent His bow and made it ready.” ( Ps. vii. 12 .) For if now, after so long a time, and after their being perfected, He cannot smite down by the name of the Word alone, but needs these expressions in order to show the superiority [arising] from the comparison [of the Gospel with the law]: much more then [of old].

8. For they attempt, by praising the Godhead of the Father only, to deprive the Son of His Divinity, pleading that it is written, Hear, O Israel, the Lord thy God is One , and that the Lord repeats this in His answer to the doctor of the Law who asked Him what was the greatest commandment in the Law; Hear, O Israel, the Lord thy God is One . Again, they say that Paul proclaims, For there is One God, and One Mediator between God and men . And furthermore, they insist that God alone is wise, in order to leave no wisdom for the Son, relying upon the words of the Apostle, Now to Him that is able to stablish you according to my gospel and the preaching of Jesus Christ, according to the revelation of the mystery which hath been kept in silence through age-long times, but now is manifested through the scriptures of the prophets according to the commandment of the eternal God Who is made known u …