Many shall be purified, and made white, and tried; but the wicked shall do wickedly: and none of the wicked shall understand; but the wise shall understand.

Wesley's Notes

12:10 And tried - The afflictions of the church are to prepare them, by taking away their filth, for the bridegroom, as gold and silver are tried and refined.

Scofield Reference Notes

Margin many shall be

A prophecy describing the moral state of the world from Daniel's day to the time of the end. Cf. Mt 13:24-30,36-43,47-49.

Jamieson-Fausset-Brown Bible Commentary

10. There is no need of a fuller explanation as to the time; for when the predictions so far given shall have come to pass, the godly shall be "purified" by the foretold trials and shall understand that the end is at hand; but the wicked shall not understand, and so shall rush on to their own ruin (Da 11:33-35) [Maurer]. The "end" is primarily, of Antiochus' persuasion; antitypically, the end of Antichrist's. It is the very clearness in the main which renders necessary the obscurity. The fulfilment of God's decree is not a mere arithmetical problem which the profane may understand by arithmetical calculations, but a holy enigma to stimulate to a faithful observance of God's ways, and to a diligent study of the history of God's people [Auberlen]. To this Christ refers (Mt 24:15), "Whose readeth, let him understand."

Matthew Henry's Concise Commentary

12:5-13 One of the angels asking how long it should be to the end of these wonders, a solemn reply is made, that it would be for a time, times, and a half, the period mentioned ch. 7:25, and in the Revelation. It signifies 1260 prophetic days or years, beginning from the time when the power of the holy people should be scattered. The imposture of Mohammed, and the papal usurpation, began about the same time; and these were a twofold attack upon the church of God. But all will end well at last. All opposing rule, principality, and power, shall be put down, and holiness and love will triumph, and be in honour, to eternity. The end, this end, shall come. What an amazing prophecy is this, of so many varied events, and extending through so many successive ages, even to the general resurrection! Daniel must comfort himself with the pleasing prospect of his own happiness in death, in judgment, and to eternity. It is good for us all to think much of going away from this world. That must be our way; but it is our comfort that we shall not go till God calls us to another world, and till he has done with us in this world; till he says, Go thou thy way, thou hast done thy work, therefore now, go thy way, and leave it to others to take thy place. It was a comfort to Daniel, and is a comfort to all the saints, that whatever their lot is in the days of their lives, they shall have a happy lot in the end of the days. And it ought to be the great care and concern of every one of us to secure this. Then we may well be content with our present lot, and welcome the will of God. Believers are happy at all times; they rest in God by faith now, and a rest is reserved for them in heaven at last.