'Day and Night' in the Bible

And the four living creatures, one by itself, had six wings together round about; and within full of eyes; and they have no rest day and night, saying, Holy, holy, holy, Lord God, the Omnipotent Ruler, who was, and who being, and who coming.

Therefore are they before the throne of God, and serve him day and night in his temple: and he sitting upon the throne will dwell among them.

And I heard a great voice saying in heaven, Now was salvation and power, and the kingdom of our God, and the authority of his Christ for the accuser of our brethren was cast down, he accusing them before our God, day and night.

And the smoke of their torture goes up forever and ever: and they have no rest day and night, those worshipping the wild beast and his image, and if any receive the stamp of his name.

And the devil deceiving them was cast into the lake of fire and sulphur, where are the wild beast and false prophet, and they shall be tortured day and night for ever and ever.