How utterly vain it is for man to harden and exalt himself against God; for, truly, He can grind to powder the hardest heart, and bring down to the dust the haughtiest spirit. "Those that walk in pride He is able to abase." (Dan. iv. 37.) Man may fancy himself to be something; he may lift up his head, in pomp and vainglory, as though he were his own master. Vain man! how little he knows of his real condition and character! He is but the tool of Satan, taken up and used by him, in his malignant efforts to counteract the purposes of God. The most splendid intellect, the most commanding genius, the most indomitable energy, if not under the direct control of the Spirit of God, are but so many instruments in Satan's hand to carry forward his dark designs. No man is his own master; he is either governed by Christ or governed by Satan. The king of Egypt might fancy himself to be a free agent, yet he was but a tool in the hands of another. Satan was behind the throne; and, as the result of Pharaoh's having set himself to resist the purposes of God, he was judicially handed over to the blinding and hardening influence of his self-chosen master. This will explain to us an expression occurring very frequently throughout the earlier chapters of this book,--"The Lord hardened Pharaoh's heart." There is no need whatever for any one to seek to avoid the full, plain sense of this most solemn statement. If man resists the light of divine testimony, he is shut up to judicial blindness and hardness of heart. God leaves him to himself, and then Satan comes in and carries him headlong to perdition. There was abundant light for Pharaoh, to show him the extravagant folly of his course in seeking to detain those whom God had commanded him to let go. But the real disposition of his heart was to act against God, and therefore God left him to himself, and made him a monument for the display of His glory "through all the earth." There is no difficulty in this to any, save those whose desire is to argue against God--"to rush upon the thick bosses of the shield of the Almighty"--to ruin their own immortal souls.