Passage
Offer sacrifice no more in vain: incense is an abomination to me. The new moons, and the sabbaths and other festivals I will not abide, your assemblies are wicked.
Offer sacrifice no more in vain: incense is an abomination to me. The new moons, and the sabbaths and other festivals I will not abide, your assemblies are wicked.
Isaiah 1:11 To what purpose do you offer me the multitude of your victims, saith the Lord? I am full, I desire not holocausts of rams, and fat of fatlings, and blood of calves, and lambs, and buck goats.
Isaiah 1:12 When you came to appear before me, who required these things at your hands, that you should walk in my courts?
Isaiah 1:13 Offer sacrifice no more in vain: incense is an abomination to me. The new moons, and the sabbaths and other festivals I will not abide, your assemblies are wicked.
Isaiah 1:14 My soul hateth your new moons, and your solemnities: they are become troublesome to me, I am weary of bearing them.
Isaiah 1:15 And when you stretch forth your hands, I will turn away my eyes from you: and when you multiply prayer, I will not hear: for your hands are full of blood.
The verse centers on "offer", "sacrifice", "vain", "incense", "abomination", "moons", "sabbaths", and "other". It is saying that the verse draws attention to "offer" and "sacrifice", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 12's "When you came to appear before me..." into verse 14's "My soul hateth your new moons and...", so "offer" and "sacrifice" belong inside that flow. In Isaiah context, the local focus is the Holy One of Israel, judgment and restoration, the servant of the LORD, and Zion's hope.
A plain takeaway is to answer the verse's own emphasis on "offer" and "sacrifice" with trust shaped by these words, not by a vague optimism outside the passage.