In the Old Testament, Israel is pictured as the wife and God as the loving husband (Isaiah 54:5). Captivated by idolatry, God's people strayed from God like a harlot, forsaking Him. There are Christians today who do the same thing, straying from God and becoming unfaithful to Him. Of course, this grieves the Holy Spirit of God, but the main concern is how God responds to our unfaithfulness.