Ephesians 4

I, therefore, the prisoner of the Lord, beseech you to walk worthy of the calling with which you were called...And do not grieve the Holy Spirit of God, by whom you were sealed for the day of redemption. vv.1,30

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Grieving isn't anger and it isn't love either, rather grieving is the sweet combination of the two.  Charles Spurgeon put it: "Love sweetens the anger and turns the edge of it, not against the person, but agains the offense" (Sermon #278).  I"m sure we can all think of someone that's caused us grief or whom we've caused grief to, yet what does it mean to grieve the Holy Spirit?  It's not a hard thing to do for whenever we sin, we cause grief in that rebellion against the Father who loves us so much.  The Spirit will mourn with us and endure, but as it continues to be in a state of grief it will become quieter and quieter in that one's life.  Now here is where there's big debate: does the person so deep in sin who's caused so much grief loose his or her salvation?  Here Paul is saying to the believers that they were sealed with the Holy Spirit for the day or redemption- salvation unto eternal life.  Once something is sealed it cannot be undone but the the one it is for.  I believe one cannot lose their salvation because of this seal, though one may loose rewards in the coming kingdom.  How do you respond when you've caused someone grief?  When you've caused the Holy Spirit grief?