(15) Psalms 33 is still in the poet's thought, and Psalm 147:6-7 especially; but some extraordinary season of frost seems to have kindled his inspiration, so that he not only elaborates but improves on his model. The word of God is personified as a messenger who runs swiftly forth to do his bidding, at first in binding the earth and sheaves up with frost, and then (Psalm 147:18) in suddenly thawing and releasing them.

Verse 15. - He sendeth forth his commandment upon earth. Heavy crops, good harvests, abundant food, result from God's providential ordering of his world, to which he gives commands that are obeyed instantly, since his word runneth very swiftly.

147:12-20 The church, like Jerusalem of old, built up and preserved by the wisdom, power, and goodness of God, is exhorted to praise him for all the benefits and blessings vouchsafed to her; and these are represented by his favours in the course of nature. The thawing word may represent the gospel of Christ, and the thawing wind the Spirit of Christ; for the Spirit is compared to the wind, Joh 3:8. Converting grace softens the heart that was hard frozen, and melts it into tears of repentance, and makes good reflections to flow, which before were chilled and stopped up. The change which the thaw makes is very evident, yet how it is done no one can say. Such is the change wrought in the conversion of a soul, when God's word and Spirit are sent to melt it and restore it to itself.He sendeth forth his commandment upon earth,.... Which Kimchi interprets of rain, which causes the wheat to grow; since afterwards mention is made of snow, and of hoar frost and ice. Aben Ezra understands it of the decree of God, which he executes on earth. The Targum, of the "Memra", or Word of the Lord; the essential Word, the Messiah; whom the Lord sent on earth to perform the great work of redemption and salvation; and who came speedily, and tarried not when the fulness of time was come, as follows. It may design God's word of providence, which answers to his word of power in the first creation of all things; and which orders everything done in the earth, and is instantly obeyed; which agrees with Psalm 147:18. Or rather the word of the Gospel; the doctrines and ordinances of divine revelation, agreeably to Psalm 147:19; and so may have respect to the mission of the apostles of Christ, and ministers of the word, to go into all the earth, and preach the Gospel to every creature;

his word runneth very swiftly; so the Gospel did in the first times of it, like lightning, from one end of the heaven to the other; the words of it went into all the world, and the sound of it unto the ends of the earth; it had a free course, and was glorified: and so it will in the latter day, when many shall run to and fro, and knowledge shall be increased; see Romans 10:18.