Hebrews 4:7 He again definitely mentions a certain day, "To-day," saying long afterwards, by David's lips, in the words already quoted, "To-day, if you hear His voice, do not harden your hearts." (WEY RSV)
Hebrews 10:8 After saying the words I have just quoted, "Sacrifices and offerings or whole burnt-offerings and sin-offerings Thou hast not desired or taken pleasure in" --all such being offered in obedience to the Law-- (WEY)