Psalm 74:22 says, Rise up, O God, and defend your cause;
remember how fools mock you all day long. (NIV)
Yes, in our society too, 3000 years later, fools – people who think they are clever and smart and have life worked out, but who are actually deluded on some important stuff because their motives are wrong – are mocking the true God all the time; it’s like water around those who believe, water that’s getting hotter, as it were. If we aren’t aware of this hot water, it will kill our faith, our love for God; it will certainly neutralise our prayers and we won’t be asking him to rise up and defend his cause!
What kind of mockery? Overt sometimes – scorn is poured on Christianity or the Bible or the people who take Jesus and salvation seriously, or who believe the Bible’s morality (for example in the area of relationships). Quite often the mockery is quiet and hidden – just missing God out of the reckoning when practical decisions are made about life or when public policy is formed (he may exist but is irrelevant), or it takes the form of believing and asserting that there is no God, or else teaching that there is a God of some kind but he is very different from the God of Abraham, Moses, David and Jesus.
Let those of us who know this God (simply by his grace not our cleverness!) and that he is true never lose our awareness and our distaste, our disgust at the mockery he gets in this fallen world, and keep on praying that he will rise up yet again – as he has done many times; just study the history of Lowland Scotland from 1835-45, for example – and show very many people just who he is.
Now we are God's children 
Amen