What a wonderful verse this is. What is Solomon saying? Is he saying that all kings have wisdom from God and they are all very wise? Well, we do not see too much of that.
What Solomon is saying is, ‘You have wisdom, spiritual insight, the salvation of God. You have repented, you have come to Christ. Christ has saved you, opened up your mind, put his Holy Spirit within you, and given you his word. You are just an ordinary, lowly person and yet it is as though you have got endless departments helping you. ‘By me kings reign.’ If you have spiritual wisdom, you carry with you endless departments of state, or the equivalent of that. You have all the counsellors you need built into you, because God has given you a depth of shrewdness and understanding so that you are one hundred times more astute and discerning than ever you were before you were saved. So Scripture even compares the Christian to a ruler with all the departments of state at hand.