The person who prays calls upon the Lord and requests God to be attentive to his cause. It is not indicated what exactly that cause is. His plea has a broader interest: to defend all those who experience injustice. He starts out with his own sincerity. It is further explained in Psalm 17:3–5.

From your presence let my vindication come! Let your eyes behold the right! The author asks for a judgment from the Lord. From your presence occurs again in Psalm 17:15 I shall behold your face in righteousness. In the psalms, the Lord is often addressed as Judge, because he upholds the law. And the author feels closely connected to the Lord (see Psalm 37:6). We also encounter the calling upon God and his justice in the parable of the widow in Luke 18:1–43: And there was a widow in that city who kept coming to him and saying, ‘Give me justice against my adversary. This widow kept bothering the judge. And will not God give justice to his elect, who cry to him day and night? The message is: continue to plead for justice with God. If you are wondering who will bring this justice on earth, read Isaiah 42:1: Behold my servant, whom I uphold, my chosen, in whom my soul delights; I have put my Spirit upon him; he will bring forth justice to the nations. In this, we recognize Jesus, on whom the Spirit has descended.