'Today' in the Bible

For to which of the angels did He ever say,“You are My Son,Today I have begotten You”? And again,“I will be a Father to HimAnd He shall be a Son to Me”?

Therefore, just as the Holy Spirit says,“Today if you hear His voice,

But encourage one another day after day, as long as it is still called “Today,” so that none of you will be hardened by the deceitfulness of sin.

while it is said,“Today if you hear His voice,Do not harden your hearts, as when they provoked Me.”

He again fixes a certain day, “Today,” saying through David after so long a time just as has been said before,“Today if you hear His voice,Do not harden your hearts.”

So also Christ did not glorify Himself so as to become a high priest, but He who said to Him,“You are My Son,Today I have begotten You”;

Jesus Christ is the same yesterday and today and forever.