How are you sure what ‘dead’ and ‘sleep’ mean, in those verses?
Being the heretic that I am, my current favorite ‘Bible’ verse, comes from the Gospel of Thomas, discovered at Nag Hammadi in 1945:
“The one who seeks should not cease seeking until he finds.
And when he finds, he will be dismayed.
And when he is dismayed, he will be astonished.
And he will be king over the All.”
- Gospel of Thomas, Logion 2
Did GOD really say... Genesis 3
About as 'sure' as I am about what asleep means here:
Matthew 27:52-53
... and the graves were opened; and many bodies of the saints who had fallen asleep were raised; and coming out of the graves after His resurrection, they went into the holy city and appeared to many.