As obedient children, do not conform to the evil desires you had when you lived in ignorance. But just as he who called you is holy, so be holy in all you do; for it is written: "Be holy, because I am holy." 1 Peter 1:14-16
Early in life, we learn to live by standards. From our first report card to our job performance reviews, we strive to meet certain levels of success. Opportunities and career advancement often come about (or not) based on our achievements. But for the believer, how we stack up against others or a system of abstract ideals is not enough. God Himself is our standard.
This "God Himself" standard is echoed throughout Scripture.
I am the Lord your God; consecrate yourselves and be holy, because I am holy. (Leviticus 11:44)
Who may ascend the hill of the Lord? He who has clean hands and a pure heart. (Psalm 24:3-4)
Your eyes are too pure to look on evil; you cannot tolerate wrong. (Habakkuk 1:13)
To the church of God in Corinth, to those sanctified in Christ Jesus and called to be holy. (1 Corinthians 1:2)
Live lives worthy of God, who calls you into his kingdom and glory. (1 Thessalonians 2:12)
The "God Himself" standard means that, by the power of the Spirit, we are separated from sin and set apart to God. Progress, not perfection, is our calling. The "God Himself" standard does not ever allow us to be comfortable with sin in our lives.
Lord, convict me of any sin that I have become comfortable with. By Your Spirit, give me a heart of repentance and a desire to live a life worthy of You. In Jesus' name. Amen.