In these verses the apostle puts them in mind of what they were before their conversion to the faith of Christ, and what a blessed change their conversion had made upon them; and thence endeavours to convince them of their great weakness in hearkening to those who would bring them under the bondage of the law of Moses.

I.He reminds them of their past state and behaviour, and what they were before the gospel was preached to them. Then they knew not God; they were grossly ignorant of the true God, and the way wherein he is to be worshipped: and at that time they were under the worst of slaveries, for they did service to those which by nature were no gods, they were employed in a great number of superstitious and idolatrous services to those who, though they were accounted gods, were yet really no gods, but mere creatures, and perhaps of their own making, and therefore were utterly unable to hear and help them. Note, 1. Those who are ignorant of the true God cannot but be inclined to false gods. Those who forsook the God who made the world, rather than be without gods, worshipped such as they themselves made. 2. Religious worship is due to none but to him who is by nature God; for, when the apostle blames the doing service to such as by nature were no gods, he plainly shows that he only who is by nature God is the proper object of our religious worship.

II.He calls upon them to consider the happy change that was made in them by the preaching of the gospel among them. Now they had known God (they were brought to the knowledge of the true God and of his Son Jesus Christ, whereby they were recovered out of the ignorance and bondage under which they before lay) or rather were known of God; this happy change in their state, whereby they were turned from idols to the living God, and through Christ had received the adoption of sons, was not owing to themselves, but to him; it was the effect of his free and rich grace towards them, and as such they ought to account it; and therefore hereby they were laid under the greater obligation to adhere to the liberty wherewith he had made them free. Note, All our acquaintance with God begins with him; we know him, because we are known of him.

III.Hence he infers the unreasonableness and madness of their suffering themselves to be brought again into a state of bondage. He speaks of it with surprise and deep concern of mind that such as they should do so: How turn you again, etc., says he, Gal 4:9. "How is it that you, who have been taught to worship God in the gospel way, should not be persuaded to comply with the ceremonial way of worship? that you, who have been acquainted with a dispensation of light, liberty, and love, as that of the gospel is, should now submit to a dispensation of darkness, and bondage, and terror, as that of the law is?" This they had the less reason for, since they had never been under the law of Moses, as the Jews had been; and therefore on this account they were more inexcusable than the Jews themselves, who might be supposed to have some fondness for that which had been of such long standing among them. Besides, what they suffered themselves to be brought into bondage to were but weak and beggarly elements, such things as had no power in them to cleanse the soul, nor to afford any solid satisfaction to the mind, and which were only designed for that state of pupillage under which the church had been, but which had now come to a period; and therefore their weakness and folly were the more aggravated, in submitting to them, and in symbolizing with the Jews in observing their various festivals, here signified by days, and months, and times, and years. Here note, 1. It is possible for those who have made great professions of religion to be afterwards drawn into very great defections from the purity and simplicity of it, for this was the case of these Christians. And, 2. The more mercy God has shown to any, in bringing them into an acquaintance with the gospel, and the liberties and privileges of it, the greater are their sin and folly in suffering themselves to be deprived of them; for this the apostle lays a special stress upon, that after they had known God, or rather were known of him, they desired to be in bondage under the weak and beggarly elements of the law.

IV.Hereupon he expresses his fears concerning them, lest he had bestowed on them labour in vain. He had been at a great deal of pains about them, in preaching the gospel to them, and endeavouring to confirm them in the faith and liberty of it; but now they were giving up these, and thereby rendering his labour among them fruitless and ineffectual, and with the thoughts of this he could not but be deeply affected. Note, 1. A great deal of the labour of faithful ministers is labour in vain; and, when it is so, it cannot but be a great grief to those who desire the salvation of souls. Note, 2. The labour of ministers is in vain upon those who begin in the Spirit and end in the flesh, who, though they seem to set out well, yet afterwards turn aside from the way of the gospel. Note, 3. Those will have a great deal to answer for upon whom the faithful ministers of Jesus Christ bestow labour in vain.

Now, after that ye have known God - After having been brought to the knowledge of God as your Savior.

Or rather are known of God - Are approved of him, having received the adoption of sons.

To the weak and beggarly elements - After receiving all this, will ye turn again to the ineffectual rites and ceremonies of the Mosaic law - rites too weak to counteract your sinful habits, and too poor to purchase pardon and eternal life for you? If the Galatians were turning again to them, it is evident that they had been once addicted to them. And this they might have been, allowing that they had become converts from heathenism to Judaism, and from Judaism to Christianity. This makes the sense consistent between the 8th and 9th verses.

But now, after that ye have known God, God in Christ, as their covenant God and Father, through the preaching of the Gospel, and in the light of divine grace; God having caused light to shine in their dark hearts; and having given them the light of the knowledge of himself in the face of Christ, and having sent down into their hearts the Spirit of his Son, crying "Abba", Father.

Or rather are known of God; for it is but little that the best of these, that have the greatest share of knowledge, know of him; and what knowledge they have, they have it first, originally, and wholly from him: that knowledge which he has of them is particular, distinct, and complete; and is to be understood, not of his omniscience in general, so all men are known by him; but of his special knowledge, joined with affection, approbation, and care: and the meaning is, that they were loved by him with an everlasting love, which had been manifested in their conversion, in the drawing of them to himself, and to his Son; that he approved of them, delighted in them, had an exact knowledge, and took special care of them: but, oh, folly and ingratitude!

how turn ye again to the weak and beggarly elements, whereunto you desire again to be in bondage? meaning the ordinances of the ceremonial law, he before calls "the elements of the world", and here "weak", because they could not give life, righteousness, peace, joy, comfort, and salvation; and, since the coming of Christ, were become impotent to all the uses they before served; and beggarly, because they lay in the observation of mean things, as meats, drinks, &c. and which were only shadows of those good things, the riches of grace and glory, which come by Christ. The Galatians are said to turn again to these; not that they were before in the observation of them, except the Jews, but because there was some likeness between these, and the ceremonies with which they carried on the service of their idols; and by showing an inclination to them, they discovered a good will to come into a like state of bondage they were in before; than which nothing could be more stupid and ungrateful in a people that had been blessed with so much grace, and with such clear Gospel light and knowledge.

known God or rather are known of God--They did not first know and love God, but God first, in His electing love, knew and loved them as His, and therefore attracted them to the saving knowledge of Him (Mat 7:23; Co1 8:3; Ti2 2:19; compare Exo 33:12, Exo 33:17; Joh 15:16; Phi 3:12). God's great grace in this made their fall from it the more heinous.

how--expressing indignant wonder at such a thing being possible, and even actually occurring (Gal 1:6). "How is it that ye turn back again?"

weak--powerless to justify: in contrast to the justifying power of faith (Gal 3:24; compare Heb 7:18).

beggarly--contrasted with the riches of the inheritance of believers in Christ (Eph 1:18). The state of the "child" (Gal 4:1) is weak, as not having attained manhood; "beggarly," as not having attained the inheritance.

elements--"rudiments." It is as if a schoolmaster should go back to learning the A, B, C'S [BENGEL].

again--There are two Greek words in the original. "Ye desire again, beginning afresh, to be in bondage." Though the Galatians, as Gentiles, had never been under the Mosaic yoke, yet they had been under "the elements of the world" (Gal 4:3): the common designation for the Jewish and Gentile systems alike, in contrast to the Gospel (however superior the Jewish was to the Gentile). Both systems consisted in outward worship and cleaved to sensible forms. Both were in bondage to the elements of sense, as though these could give the justification and sanctification which the inner and spiritual power of God alone could bestow.

ye desire--or "will." Will-worship is not acceptable to God (Col 2:18, Col 2:23).