Jesus is further qualified for mediatorial dominion by his knowledge and wisdom. These are indispensable regal qualifications. That authority of any kind, particularly supreme authority, should be held by one who is ignorant or foolish, shocks all our sentiments of propriety. “Be wise, O ye kings” (Ps. 2:10). The kings of Israel were required to read in the book of the law; and Solomon, the most distinguished king of antiquity, and one of the most remarkable types of Christ in his regal office, was wiser than all the men of his day. We speak now, not so much of knowledge in general, as of that which qualifies for rule‑knowledge of the principles of government; of the laws of the kingdom; of the character, state, and necessities of the subjects; and of the nature and bearing of foreign relations. Such knowledge is essential to the useful exercise of power.
The knowledge of Christ, in all these respects, is extensive and perfect. He knows well the principles of the government which he is delegated to administer; for they are founded on the nature of God and man, and on the relation subsisting between them; and with these, being Immanuel, God with us, he cannot but be most thoroughly acquainted. He knows well the laws of his kingdom, being himself the lawgiver by whom they were all framed and promulgated, and having himself yielded perfect obedience to them all. He knows all his subjects in the minute variety of their circumstances, characters, necessities, and desires; “he needs not that any should testify of man, for he knows what is in man, and he searcheth the reins and hearts” (John 21:17; 2:25; Rev. 2:23). He is thoroughly acquainted with the rival kingdom of this world, from which he has to reclaim his subjects, and against whose assaults he must defend them; with the kingdom of darkness, from which he has to save them; and with the kingdom of light, with which he has to induce them to form, not a partial or temporary confederacy merely, but a final and permanent alliance.
Nor is wisdom less important than knowledge. Wisdom to foresee, judgment to contrive, prudence to execute, are essential to a ruler. Jesus, “the king eternal,” is at the same time “the only wise God” (1 Tim. 1:17). His understanding is infinite. He can lay down the best plans and devise the best measures for promoting at once the enlargement, the usefulness, and the happiness of his kingdom.
In short, nothing can fail either from ignorance or from indiscretion. There is no lack of information or of prudence. No event can occur unforeseen by him. He is prepared for every occurrence. Nay, such is his wisdom, that what his enemies design for injury, he, by skillful management, can cause to operate powerfully for good.
– William Symington, Messiah the Prince
From reformed.org