'Day of the Lord' in the Bible

They will throw their silver into the streets,and their gold will seem like something filthy.Their silver and gold will be unable to save themin the day of the Lord’s wrath.They will not satisfy their appetitesor fill their stomachs,for these were the stumbling blocksthat brought about their iniquity.

You did not go up to the gaps or restore the wall around the house of Israel so that it might stand in battle on the day of the Lord.