How does God's holiness affect His hearing of our prayers?

God's holiness is both a comfort and a standard in understanding prayer. Psalm 15 describes who may dwell in God's holy presence and highlights that it is those who walk uprightly and do righteousness. Sinful humanity, in its own state, cannot approach God; however, because of Christ's righteousness, believers are seen as pure and are welcomed into His presence. Therefore, prayer from a sinner is made possible only through the holiness of Christ who intercedes on our behalf. This truth underscores the necessity of being clothed in Christ's righteousness to have any hope of being heard by God.