Did Jesus and Peter forget about God's covenant with Noah ?

By no means ! Just as he stated in the covenant with Noah,
God will not employ floodwaters to bring this wicked system
of things to an end:

Instead , he will use the might of the
" King of kings and Lord of lords, " Jesus Christ.

{ Revelations { Apocalpse } 19:11-21

According to the Bible , therefore , the earth ' will not be destroyed,
but the " world " of evil mankind will without fail come to an end.
{ Proverbs 2:21,.22; Revelations 11:18 }

The meek shall inherit the earth as is written...