3 Bible Verses about God Swearing Harm

So in my anger I took oath, 'They shall not be admitted to my rest!'"

To whom did He take oath that they should not be admitted to His rest, if it was not to those who disobeyed Him?

For we who have believed are being admitted to that rest, just as He has said: "As in my anger I took oath, they shall not be admitted to my rest," although God's works had been completed at the creation of the world.