When we complain, we're saying that the blessings of the gospel aren't enough. We're saying that the death of Christ isn't enough. We're saying that eternal fellowship with God, purchased at great cost to God, isn't enough to satisfy our souls. We're saying that forgiveness of sins and peace with God is nice, but not that nice. We're saying that God "[has] not wisdom, or power, or mercy enough," to provide for us. We're saying that God himself, who is the very definition of goodness, isn't good enough. We would like a little something more, if you don't mind. God plus [insert desire of choice] should do the trick. When we complain, we accuse God of being stingy, of not giving us enough. Do you see the utter sinfulness of complaining? It tramples the gospel in the mud and paints God as a cosmic Scrooge. Even though God gave up what was most precious to him to bring us to himself, it's not enough. Even though God proved his generosity with blood, we don't believe him. God has emptied his pockets for us, and yet we complain.1
We desperately need to return, again and again to the gospel. Re-applying it daily. When tempted to complain, it is vital that we remember "the hell we deserve and the heaven we've received."
1 Altrogge, Stephen "The Greener Grass Conspiracy" p. 72, Crossway
