I will also cause all her mirth to cease, her feast days, her new moons, and her sabbaths, and all her solemn feasts.

Wesley's Notes

2:11 Her feast days - Though apostate, Israel was fallen to idolatry, yet they retained many of the Mosaic rites and ceremonies. Her solemn feasts - The three annual feasts of tabernacles, weeks, and passover, all which ceased when they were carried captive, by Salmaneser.

Jamieson-Fausset-Brown Bible Commentary

11. her feast days-of Jeroboam's appointment, distinct from the Mosaic (1Ki 12:32). However, most of the Mosaic feasts, "new-moons" and "sabbaths" to Jehovah, remained, but to degenerate Israel worship was a weariness; they cared only for the carnal indulgence on them (Am 8:5).

Matthew Henry's Concise Commentary

2:6-13 God threatens what he would do with this treacherous, idolatrous people. They did not turn, therefore all this came upon them; and it is written for admonition to us. If lesser difficulties be got over, God will raise greater. The most resolute in sinful pursuits, are commonly most crossed in them. The way of God and duty is often hedged about with thorns, but we have reason to think it is a sinful way that is hedged up with thorns. Crosses and obstacles in an evil course are great blessings, and are to be so accounted; they are God's hedges, to keep us from transgressing, to make the way of sin difficult, and to keep us from it. We have reason to bless God for restraining grace, and for restraining providences; and even for sore pain, sickness, or calamity, if it keeps us from sin. The disappointments we meet with in seeking for satisfaction from the creature, should, if nothing else will do it, drive us to the Creator. When men forget, or consider not that their comforts come from God, he will often in mercy take them away, to bring them to think upon their folly and danger. Sin and mirth can never hold long together; but if men will not take away sin from their mirth, God will take away mirth from their sin. And if men destroy God's word and ordinances, it is just with him to destroy their vines and fig-trees. This shall be the ruin of their mirth. Taking away the solemn seasons and the sabbaths will not do it, they will readily part with them, and think it no loss; but He will take away their sensual pleasures. Days of sinful mirth must be visited with days of mourning.