'Day and Night' in the Bible

Will not God grant justice to His elect who cry out to Him day and night? Will He delay to help them?

but their plot became known to Saul. So they were watching the gates day and night intending to kill him,

Each of the four living creatures had six wings; they were covered with eyes around and inside. Day and night they never stop, saying:Holy, holy, holy,Lord God, the Almighty,who was, who is, and who is coming.

For this reason they are before the throne of God,and they serve Him day and night in His sanctuary.The One seated on the throne will shelter them:

Then I heard a loud voice in heaven say:The salvation and the powerand the kingdom of our Godand the authority of His Messiahhave now come,because the accuser of our brothershas been thrown out:the one who accuses thembefore our God day and night.

The Devil who deceived them was thrown into the lake of fire and sulfur where the beast and the false prophet are, and they will be tormented day and night forever and ever.