'Day' in the Bible

just as you have also understood us in part, that we are your reason for boasting, just as you [are] also ours in the day of our Lord Jesus.

But their minds were hardened. For until this very day, the same veil remains upon the reading of the old covenant, not being uncovered, because it is done away with in Christ.

Therefore we do not lose heart, but even if our outer person is being destroyed, yet our inner [person] is being renewed day after day.

For he says, "At the acceptable time I heard you, and in the day of salvation I helped you." Behold, now [is] the acceptable time; behold, now [is] the day of salvation!

Three times I was beaten with rods. Once I received a stoning. Three times I was shipwrecked. A day and a night I have spent in the deep water.

Apart from these external things, [there is] the pressure on me every day of the anxiety about all the churches.