After 7 days, after Noah had been sealed in the ark, probation was finally closed & the end came
And it came to pass after seven days, that the waters of the flood were upon the
earth.
Genesis 7:10
After the 7 plagues, and God's people have been sealed, probation closes and the end comes
He that is unjust, let him be unjust still: and he which is filthy, let him be
filthy still: and he that is righteous, let him be righteous still: and he that
is holy, let him be holy still. And, behold, I come quickly; and my reward is with me, to give every man
according as his work shall be.
Revelation 22:11,12