Hebrews 4:5-7 CSB
Again, in that passage he says, They will never enter my rest. Therefore, since it remains for some to enter it, and those who formerly received the good news did not enter because of disobedience, he again specifies a certain day — today . He specified this speaking through David after such a long time:
Today, if you hear his voice,
do not harden your hearts.
CSB: Christian Standard Bible