Distinguished in this way, between heavenly and earthly justice, Christians naturally embrace the heavenly conception. But Lewis rightly asks us to yearn for earthly justice as well, and to work for it. For one thing, to do this puts us on the side of those who traditionally have had difficulty obtaining justice.

Yesterday we concluded by considering the issue of false accusations, and said that there are two surprising features which can create problems for us. The first is David’s insistence on his own innocence, and how this fits with the Bible’s teaching that we are not innocent.  

David does not report the accusation against him in detail. But it seems, from verses 3 and 4, that he had been accused of doing evil to one whom he had no cause to regard as an enemy and of robbing one whom, though he was an enemy, he had no cause to abuse. There are two things we need to note about this specifically. First, a slander like this was a serious matter for one in David's position.

If you have been paying close attention to the psalms preceding Psalm 7 and have been comparing them, you may have noticed a growth in the intensity of feeling on David's part. The first two psalms are introductory and are not by David, so far as we know. But the next ones, indeed, almost all the psalms in the psalter's first division (Psalms 1-41), are by David, and it is the earliest of these that show the growth I am talking about. 

The second half of the psalm, which begins with verse 8, contains such a radical change of mood that many commentators seem to be without any adequate explanation. They have supposed that something intervenes, like an oracle given to the psalmist by one of the priests. This is an unnecessary and mechanical explanation. What happened is that God heard and accepted David's prayer, as he himself tells us: “Away from me, all you who do evil, for the Lord has heard my weeping. The LORD has heard my cry for mercy; the LORD accepts my prayer (vv. 8-9).