This thing became a sin - i. e., this act of Jeroboam's became an occasion of sin to the people. The author perhaps wrote the following words thus: "The people went to worship before the one to Bethel and before the other to Dan."

And this thing became a sin,.... The cause and occasion of the sin of idolatry; it led them by degrees to leave off the worship of God, and to worship these calves as gods:

for the people went to worship before the one, even unto Dan; which was the furthest off, such was their great zeal for idolatrous worship; or they went thither before that at Bethel was set up; and even they at Bethel would go as far as Dan to worship, such was their veneration for both the calves. Abarbinel is of opinion that these calves were not made by Jeroboam for idolatrous uses, only the altar later mentioned; and that he never worshipped before them, nor sacrificed to them, nor even built the altar before them; but that these were set up as signs, and in memory of his kingdom, like the pillars in Solomon's temple; that he chose the calf or ox as emblems of his family, the family of Joseph, Deuteronomy 33:17 two to represent Ephraim and Manasseh; golden ones, to denote the majesty and perpetuity of his kingdom; and he set these, the one at Bethel, at the entrance of it, and the other at Dan, at the further borders of it; and that he did not call those gods, but the only true God, as he that brought Israel out of Egypt; only signified by that expression, that he was everywhere, there as well as at Jerusalem; but that the Israelites, who were taken with sensible objects, on visiting these out of curiosity, it became a snare to them, and they fell into the worship of them; just as Gideon's ephod, and Moses' brasen serpent, were unto them.

But this institution became a sin to Jeroboam, because it violated the fundamental law of the Old Testament religion, since this not only prohibited all worship of Jehovah under images and symbols (Exodus 20:4), but had not even left the choice of the place of worship to the people themselves (Deuteronomy 12:5.). "And the people went before the one to Dan." The expression "to Dan" can only be suitably explained by connecting it with העם: the people even to Dan, i.e., the people throughout the whole kingdom even to Dan. The southern boundary as the terminus a quo is not mentioned; not because it was for a long time in dispute, but because it was already given in the allusion to Bethel. האחד is neither the golden calf at Dan nor (as I formerly thought) that at Bethel, but is to be interpreted according to the receding את־האחד ואת־האחד: one of the two, or actually both the one and the other (Thenius). The sin of which Jeroboam was guilty consisted in the fact that he no longer allowed the people to go to the house of the Lord in Jerusalem, but induced or compelled them to worship Jehovah before one or the other of the calves which he had set up, or _(as it is expressed in 1 Kings 12:31) made a house of high places, בּמות בּית (see at 1 Kings 3:2), instead of the house of God, which the Lord had sanctified as the place of worship by filling it with His gracious presence. The singular בּית ב may be accounted for from the antithesis to יהוה בּית, upon which it rests. There was no necessity to say expressly that there was a house of high places at Bethel and Dan, i.e., in two places, because it followed as a matter of course that the golden calves could not stand in the open air, but were placed in a temple, by which the sacrificial altar stood. These places of worship were houses of high places, Bamoth, because the ark of the covenant was wanting, and therewith the gracious presence of God, the Shechinah, for which no symbol invented by men could be a substitute. Moreover Jeroboam made "priests from the mass of the people, who were not of the sons of Levi." העם מקצות, i.e., not of the poorest of the people (Luther and others), but from the last of the people onwards, that is to say, from the whole of the people any one without distinction even to the very last, instead of the priests chosen by God out of the tribe of Levi. For this meaning of מקצות see Genesis 19:4 and Ezekiel 33:2, also Lud. de Dieu on this passage. This innovation on the part of Jeroboam appears very surprising, if we consider how the Ephraimite Micah (Judges 17:10.) rejoiced that he had obtained a Levite to act as priest for his image-worship, and can only be explained from the fact that the Levites did not consent to act as priests in the worship before the golden calves, but set their faces against it, and therefore, as is stated in 2 Chronicles 11:13-14, were obliged to leave their district towns and possessions and emigrate into the kingdom of Judah.

And this thing became a sin: for the people went to worship before the one, even unto Dan.

12:30 A sin - That is, an occasion of great wickedness, not only of idolatry, which is called sin by way of eminency; nor only of the worship of the calves, wherein they pretended to worship the true God; but also of the worship of Baal, and of the utter desertion of the true God; and of all sorts of impiety. To Dan - Which is not here mentioned exclusively, for they went also to Beth - el, ver.32,33, but for other reasons, either because that of Dan was first made, the people in those parts having been long leavened with idolatry, Judg 18:30, or to shew the peoples readiness and zeal for idols; that those who lived in, or near Beth - el, had not patience to stay 'till that calf was finished, but all of them were forward to go as far as Dan, which was in the utmost borders of the land, to worship an idol there; when it was thought too much for them to go to Jerusalem to worship God.

12:25-33 Jeroboam distrusted the providence of God; he would contrive ways and means, and sinful ones too, for his own safety. A practical disbelief of God's all-sufficiency is at the bottom of all our departures from him. Though it is probable he meant his worship for Jehovah the God of Israel, it was contrary to the Divine law, and dishonourable to the Divine majesty to be thus represented. The people might be less shocked at worshipping the God of Israel under an image, than if they had at once been asked to worship Baal; but it made way for that idolatry. Blessed Lord, give us grace to reverence thy temple, thine ordinances, thine house of prayer, thy sabbaths, and never more, like Jeroboam, to set up in our hearts any idol of abomination. Be thou to us every thing precious; do thou reign and rule in our hearts, the hope of glory.