"Good grief Charlie Brown!" Although it's never really crossed my mind, it's thought that this familiar English idiom, "good grief", might be carried over from an attempt to censor the mild oath "Good Lord!" or "Good God!". We use it sometimes to express irritation or surprise and frustration.
Regardless, "good grief" is an odd expression. We might ask, "What could be good about grief?" But according to Matthew 5:4 there is a good kind of grief that God looks on with favor - "Blessed are those who mourn for they shall be comforted". So there is a kind of mourning that those in the kingdom of God feel and experience which those who are outside the kingdom do not. We grieve over the things which grieve God.
Simply put, saved people are sad because of sin. We grieve over sin in our own lives (James 4:8-10). We grieve over sin in the church (1 Corinthians 5:1-2; 2 Corinthians 12:21). And we grieve over sin in the world (Romans 9:1-3).
Sin grieves God (Ephesians 4:30), and should grieve us, because God is holy. This Sunday our church family will sing songs about the holiness of God (see the links below), yet we'll also praise God that although our sin grieves Him, and thus grieves us, His Mercy is More.
Ultimately our longing is for sin in us, and in the world, to be done way with. We are longing for the Kingdom of God to come. So as we're praying for revival in the month of February get familiar with this newer hymn of praise which is actually a prayer - Let Your Kingdom Come.
Have a blessed week. Looking forward to worshipping with you this Sunday.