Can the seal of the Holy Spirit be broken?

To be SEALED or not to be SEALED...

Are we SEALED or not?

SEALS CAN BE BROKEN...

And grieve not the holy Spirit of God, whereby ye are sealed unto the day of redemption.

--EPHESIANS 4.30

I wonder if Precher Dockidds here is grieving the Holy Spirit of God?  If so he better REPENT or he shall likewise perish...

...developing...