Can any of us say, "I am confident that the Lord will say, 'Well done, good and faithful servant'"? We can't make a claim to be blameless in our own achievements. We are blameless, but not because of our perfection. We are blameless because Jesus' sacrifice has forgiven and cleansed us and the Holy Spirit is working to perfect our behavior so it matches our standing in grace before God (2 Corinthians 3:18). Paul could tell Timothy that he had been the worst of sinners (1 Timothy 1:12-17), yet he was confident that he had done what God had called him to do and he would wear a glorious crown of righteousness when Jesus comes again (2 Timothy 4:6-8). His assurance was because of God's grace in Jesus (1 Timothy 1:15-17). I don't know about you, but I am thankful to know that we can bring the LORD delight as our children bring us delight even though they are not fully mature or perfect in their behaviors. We pursue blamelessness because of Jesus' sacrifice. God views us blameless because of that same sacrifice.