'Day' in the Bible

do not harden your hearts as in the rebellion, in the day of testing in the wilderness,

But encourage one another {day by day}, as long as it is called "today," so that {none of you become hardened} by the deception of sin.

For he has spoken somewhere about the seventh [day] in this way: "And God rested on the seventh day from all his works,"

again he ordains a certain day, today, speaking by David after so long a time, just as had been said before, "Today, if you hear his voice, do not harden your hearts."

For if Joshua had caused them to rest, he would not have spoken about another day after these [things].

who does not {need every day} like the former high priests to offer up sacrifices for his own sins [and] then for the [sins] of the people, because he did this once for all [when he] offered up himself.

not like the covenant which I made with their fathers on the day I took hold of them by my hand to lead them out of the land of Egypt, because they did not continue in my covenant and I disregarded them, says the Lord.

And every priest stands every day serving and offering the same sacrifices many times, which are never able to take away sins.

not abandoning {our meeting together}, as [is] the habit of some, but encouraging [each other], and by so much more as you see the day drawing near.