Clothed by His Righteousness.

Galatians 3:26-27

For you are all sons and daughters of God through faith in Christ Jesus. For all of you who were baptized into Christ have clothed yourselves with Christ.

Guard your heart.

Matthew 15:18-19 

But the things that come out of the mouth come from the heart, and those things defile the person. For out of the heart come evil thoughts, murders, acts of adultery, other immoral sexual acts, thefts, false testimonies, and slanderous statements.

Boasting?

Jeremiah 9:23-24
Thus says the LORD: “Let not the wise man boast in his wisdom, let not the mighty man boast in his might, let not the rich man boast in his riches, but let him who boasts boast in this, that he understands and knows me, that I am the LORD who practices steadfast love, justice, and righteousness in the earth. For in these things I delight, declares the LORD.”