Isaiah 66:23
Book: Isaiah 66
And it shall come to pass, that from one new moon to another, and from one sabbath to another, shall all flesh come to worship before me, saith Jehovah.
Hebrews 4:7
Book: Hebrews 4
he again defineth a certain day, To-day, saying in David so long a time afterward (even as hath been said before), To-day if ye shall hear his voice, Harden not your hearts.