Hebrews 4:7

4:7 So God again ordains a certain day, “Today,” speaking through David after so long a time, as in the words quoted before, “O, that today you would listen as he speaks! Do not harden your hearts.”

Hebrews 9:19

9:19 For when Moses had spoken every command to all the people according to the law, he took the blood of calves and goats with water and scarlet wool and hyssop and sprinkled both the book itself and all the people,

Hebrews 12:10

12:10 For they disciplined us for a little while as seemed good to them, but he does so for our benefit, that we may share his holiness.