Charles H. Spurgeon on Psalms 33:9

It is all one with God to do as to say, to perform as to promise; it is as easy, he is as willing, as able, to do the one as the other. There is no such distance betwixt God's saying and doing, as amongst men. His saying is doing: He spake, and it was done; he commanded, and it stood fast. By the word of the Lord were the heavens made. "The worlds were framed by the word of God." Heb 11:3. There is omnipotence in his word, both of command and promise; therefore called, "The word of his power." Heb 1:3. One word of his can do more in an instant than the united powers of heaven and earth can do in eternity. This consideration removes at once the chief discouragements that hinder the lively actings of faith; for what is it that weakens our confidence of the promises' performance, but because we look upon the accomplishment as uncertain or difficult, or future and afar off! Now from hence faith may conclude the performance is certain, easy, and present. David Clarkson.