What does the Bible say about God's view of sin in His people?

According to Numbers 23:21, God declares, 'He hath not beheld iniquity in Jacob neither hath he seen perverseness in Israel.' This does not suggest that there is no sin in believers, but rather that God, through the work of Christ, does not mark their sins against them. In Christ, God’s justice has been satisfied, leading to the profound truth that believers are seen as righteous, washed clean by Christ's sacrifice. This doctrine highlights the depth of divine grace, emphasizing that though sin exists within us, it is not held against us in terms of God’s justice, as all sin has been laid upon Christ.