And he changeth the times and the season
Not only of day and night, summer and winter, and times and seasons of prosperity and adversity; but all the changes and revolutions in states and kingdoms, in all times and ages, are from him; and particularly those pointed at in the following dream, in the Babylonian, Persian, Grecian, and Roman monarchies: he removeth kings, and setteth up kings;
he is King of kings, and Lord of lords; by him they reign, and continue on their thrones, as long as he pleases; and then he removes them by death or otherwise, and places others in their stead; and who are sometimes raised from a low estate; and this he does in the ordinary course of Providence; see ( Psalms 75:6 Psalms 75:7 ) and particularly Daniel might have in view the removal of the Babylonian monarchs, and setting up kings of the race of the Medes and Persians; and then the degrading them, and advancing the Grecians to the height of monarchy; and then reducing of them, and raising the Romans to a greater degree of power and authority; and at last crushing them all in their turns, to make way for the kingdom of his Son: he giveth wisdom to the wise, and knowledge to them that know
understanding:
an increase of wisdom and knowledge, to wise politicians and counsellors of state, to form wise schemes of peace or war, to make wise laws, and govern kingdoms in a prudent manner; and to wise master builders or ministers of the word, to speak the wisdom of God in a mystery, to diffuse the knowledge of Christ everywhere, and make known the mysteries of grace to the sons of men; particularly to Daniel and his companions, who were wise and knowing men, the interpretation of the king's dream.