Most believers don't know anything about true humility. If you tell them they're the righteousness of God, they'll fight to keep from believing it. You can give them scripture references to prove it, and they'll still argue.
"Oh no," they'll say, "I'm not righteous. I'm just an old sinner saved by grace." They're making a sincere attempt to be humble. But they're sincerely wrong. They're so afraid of being exalted by pride that they've let Satan trick them into falling right into it.
Let me show you what I mean. According to 1 Peter 5:5-6, to be truly humble is to submit to God. That means when God says something, you believe it no matter how foreign to your "religious" thinking it may be. When He says you've been made the righteousness of God in Christ Jesus, you say that too. In fact, you wouldn't dare say anything else because to do so would be to dare to disagree with God. And, when you get right down to it, that's the ultimate form of pride, isn't it?
Don't let Satan keep you groveling in the dust of false humility. Agree with God. Find out what His Word says about you, then be bold enough to say it yourself. Banish pride by submitting to His truth. Clothe yourself in true humility. It's sure to look good on you.