What does it mean to be washed with Christ's blood and Spirit [in baptism]?

To be washed with Christ's blood means that God, by grace, has forgiven our sins because of Christ's blood poured out for us in his sacrifice on the cross.¹ To be washed with Christ's Spirit means that the Holy Spirit has renewed and sanctified us to be members of Christ, so that more and more we become dead to sin and live holy and blameless lives.²