Holiness

2 Cor 7:1
Therefore, having these promises, beloved, let us cleanse ourselves from all filthiness of the flesh and spirit, perfecting holiness in the fear of God.
NKJV

Eph 4:20-24
But you have not so learned Christ, 21 if indeed you have heard Him and have been taught by Him, as the truth is in Jesus: 22 that you put off, concerning your former conduct, the old man which grows corrupt according to the deceitful lusts, 23 and be renewed in the spirit of your mind, 24 and that you put on the new man which was created according to God, in true righteousness and holiness.
NKJV

1 Thess 3:12-13
And may the Lord make you increase and abound in love to one another and to all, just as we do to you, 13 so that He may establish your hearts blameless in holiness before our God and Father at the coming of our Lord Jesus Christ with all His saints.
NKJV

1 Thess 4:7-8
For God did not call us to uncleanness, but in holiness. 8 Therefore he who rejects this does not reject man, but God, who has also given us His Holy Spirit.
NKJV

Heb 12:14
Pursue peace with all people, and holiness, without which no one will see the Lord:
NKJV

1 Chron 16:29
Give to the LORD the glory due His name;
Bring an offering, and come before Him.
Oh, worship the LORD in the beauty of holiness!
NKJV

Perfecting Holiness is something every Christian should attempt. We will never reach perfect holiness, but our God will sure be blessed by our efforts.