In Spurgeon on the Holy Spirit, Charles Spurgeon defines grief as a "sweet combination of anger and love. It is anger, but all the bitterness is taken from it." Paul exhorts believers not to grieve the Holy Spirit. But what does it mean to grieve the Holy Spirit? The Prince of Preachers responds:
"How can we grieve the Spirit? I am now, mark you, speaking of those who love the Lord Jesus Christ. The Spirit of God is in your hearts, and it is easy indeed to grieve Him. Sin is as easy as it is wicked. You may grieve Him by impure thoughts. He cannot bear sin. If you indulge in lewd expressions, or even if you allow your imagination to dwell on any impure act, if your heart is covetous, if you set your heart upon anything that is evil, the Spirit of God will be grieved. I hear Him speaking, "I love this man. I want to have his heart, and yet he is entertaining these filthy lusts. His thoughts, instead of running after Me, after Christ, and after the Father are running after the temptations that are in the world through lust." And then His Spirit is grieved. He sorrows in His soul because He knows what sorrow these things must bring to our souls."
"And grieve not the Holy Spirit of God, whereby ye are sealed unto the day of redemption," (Eph. 4:30).