In these warlike expeditions, King David foreshadowed the spiritual conquests of the Son of David, who went forth "conquering and to conquer," staggered for a moment, as in Gethsemane, by the rude shock of confederate enemies, but through prayer regaining his confidence in God, and triumphing in the hour and power of darkness. That noble effusion of fire and feeling, the sixty-eighth Psalm, seems to have been written in connection with these wars. The soul of the Psalmist is stirred to its depths; the majestic goings of Jehovah, recently witnessed by the nation, have roused his most earnest feelings, and he strains every nerve to produce a like feeling in the people. The recent exploits of the king are ranked with His doings when He marched before His people through the wilderness, and Mount Sinai shook before Him. Great delight is expressed in God's having taken up His abode on His holy hill, in the exaltation of His people in connection with that step, and likewise in looking forward to the future and anticipating the peaceful triumphs when "princes should come out of Egypt, and Ethiopia stretch forth her arms to God." Benevolent and missionary longings mingle with the emotions of the conqueror and the feelings of the patriot.
"Sing unto the Lord, ye kingdoms of the earth; Oh, sing praises unto the Lord, To Him that rideth upon the heaven of heavens that are of old. Lo, He uttereth His voice, and that a mighty voice."
It is interesting to see how in this extension of his influence among heathen nations, the Psalmist began to cherish and express these missionary longings, and to call on the nations to sing praises unto the Lord. It has been remarked that, in the ordinary course of Providence, the Bible follows the sword, that the seed of the Gospel falls into furrows that have been prepared by war. Of this missionary spirit we find many evidences in the Psalms. It was delightful to the Psalmist to think of the spiritual blessings that were to spread even beyond the limits of the great empire that now owned the sway of the king of Israel. Mount Zion was to become the birth-place of the nations; from Egypt and Babylonia, from Philistia, Tyre, and Ethiopia, additions were to be made to her citizens (Ps. lxxxvii.). "The people shall be gathered together, and the nations, to serve the Lord" (Ps. cii. 22). "All the ends of the earth shall remember and turn to the Lord, and all the kindreds of the nations shall worship before Him" (Ps. xxii. 27). "All nations whom Thou hast made shall come and worship before Thee, O Lord; and they shall glorify Thy name" (Ps. lxxxvi. 9). "Make a joyful noise unto the Lord, all ye lands. Enter into His gates with thanksgiving, and into His courts with praise" (Ps. c. 1, 4).
Alas, the era of wars has not yet passed away. Even Christian nations have been woefully slow to apply the Christian precept, "Inasmuch as lieth in you, live peaceably with all men." But let us at least make an earnest endeavour that if there must be war, its course may be followed up by the heralds of mercy, and that wherever there may occur "the battle of the warrior, and garments rolled in blood," there also it may speedily be proclaimed, "Unto us a Child is born, unto us a Son is given, and the government is on His shoulders: and His name is called Wonderful, Counsellor, Mighty God, the Everlasting Father, Prince of Peace" (Isa. ix. 6).