'Unholy' in the Bible

“When you come to appear before Me,Who requires this of you, this trampling of My [temple] courts [by your sinful feet]?

If you keep the Sabbath with care, not doing your business on my holy day; and if the Sabbath seems to you a delight, and the new moon of the Lord a thing to be honoured; and if you give respect to him by not doing your business, or going after your pleasure, or saying unholy words;

Who are saying, 'Keep to thyself, come not nigh to me, For I have declared thee unholy.' These are a smoke in Mine anger, A fire burning all the day.