Part of the ongoing Verse Quick Reference project.
Eph 4:30 And do not grieve the Holy Spirit of God, by whom you were sealed for the day of redemption.
Ephesians 4:30 describes divine passability. God feels emotions. These emotions are caused by His creation. Paul directs his audience to live a certain way to ensure that God does not feel these certain emotions. The man is the cause, directly affecting God. Embedded in this statement is the idea that people can make God grieve, that this would be contrary to what God wants, and people have it in their power to ensure this does not happen.