It is not certain whether the brass altar was at Bethel at this time, or whether it may not have been elsewhere, e. g., at Shiloh with the tabernacle. Some, however, think that the altar here mentioned was "additional" to the brass altar, in consequence of the unusual number of sacrifices caused by the presence of the whole congregation (compare 1 Kings 8:64 note).

Built there an altar - This affords some evidence that this was not a regular place of worship, else an altar would have been found in the place; and their act was not according to the law, as may be seen in several places of the Pentateuch. But there was neither king nor law among them, and they did whatever appeared right in their own eyes.

And it came to pass on the morrow, that the people rose early,.... The day after their fasting and prayer, and a sense of their present case and circumstances being deeply impressed upon their minds, they rose early in the morning to acts of devotion, and exercises of religion, hoping that being in the way of their duty, the difficulties with which they were perplexed would be removed:

and built there an altar; if this place was Bethel, as Kimchi reasons, there Jacob had built an altar; but that in such a course of years might have been demolished: and if it was Shiloh, there was the tabernacle, and so the altar of the Lord there; wherefore this either signifies the repairing of that, being in ruins, which is not likely, since it was but lately used, Judges 20:26 or the building of a new one, which to do in the tabernacle was not unlawful, especially when the number of sacrifices required it, which it is highly probable was the case now, as it was at the dedication of the temple, 1 Kings 8:64 though the above mentioned writer thinks, that building an altar signifies, as in many places, only seeking the Lord; but the use for which it was built is expressed:

and offered burnt offerings and peace offerings; both to atone for the sins they had been guilty of in the prosecution of the war, and to return thanks for victory given, and to implore fresh favours to be bestowed upon them.

And it came to pass on the morrow, that the people rose early, and built there an {b} altar, and offered burnt offerings and peace offerings.

(b) According to their custom, when they would consult the Lord.

21:4 An altar - Not for a monument of the victory, but for sacrifices, as the next words shew. There might be in that place more altars than one, when the multitude of sacrifices be required, which was the case, 1Kings 8:64, and probably at this time, when all the tribes being met, they had many sacrifices to offer, some in common for all, and some peculiar to every tribe.

17:7-13 Micah thought it was a sign of God's favour to him and his images, that a Levite should come to his door. Thus those who please themselves with their own delusions, if Providence unexpectedly bring any thing to their hands that further them in their evil way, are apt from thence to think that God is pleased with them.