The word “different” in the dictionary is defined as, 1. “not alike in character or quality …; 2. not identical; separate or distinct …; … 4. not ordinary; unusual.”
Now when we read 1 Peter 2:9 with the understanding of the word “different,” we get a sense that the bible is saying we are not like others who live in disobedience by rejecting the Savior as the foundation of hope (vs. 8). This is why the verse starts with the word, ‘but.”
1 Peter 2:9 says, “But ye are a chosen generation, a royal priesthood, an holy nation, a peculiar people; that ye should shew forth the praises of him who hath called you out of darkness into his marvellous light:”
How did I become different?
By receiving God’s mercy (vs. 10) – buying me back with the blood of Jesus (vs. 24). See Acts 20:28 & Titus 2:14
Once He bought me back, God now sees me as His chosen, holy priest with special distinctions.
Since I am different, I therefore do not play on the same field as the people in verse1 who walk in malice, guile, hypocrisies, envy and evil speaking. Apostle Peter says in verse 3 that if I have tasted the grace of God which makes vs. 9 quoted above to be true, then I cannot participate in verse 1 (malice, all deceit, hypocrisy, envy, and all evil speaking.) He also says if indeed I am different, I would desire pure word of God, not the dilute ones (vs. 2).
Because I am different, Jesus says I have to:
Ensure that my righteousness exceeds that of general bible readers or philosophers – Mat. 5:20.
Maintain inward purity – Mat. 5: 27-28
Hold my marriage sacred – Mat. 5:31—32
Stay away from swearing – Mat. 5:33-37
Stay away from seeking revenge but go a second mile – Mat. 5:38-42
Extend my love beyond only those who love me – Mat. 5:43-48
How can I live a life of a peculiar / different person?
By receiving and increasing in the power of the Holy Spirit (Ezek. 47:1-12)
This will help me with 1 Pet. 2:11-12 which prescribes that I abstain from lust and ensure that my good works bring glory to the name of God in my life.
Why did God make me different?
In order to show forth the honor / virtue/ that lead to the praise of God in all that I do (Vs.9).
May you begin to see yourself as a different person in order to bring praise to the name of the Lord.