We didn’t become righteousn by doing good; we recieved righteousness as a gift. This means that as believers in Christ we can not lose our righteousness even when we fail.
In fact it is his righteousness that help us up when we fail! This is so important for you to know because like it or not, you will fail. You will fall short . And if you are not established in your righteousness in christ, the devil will accuse you and make you think that you don’t deserve to be blessed not qualified to recieve his supply, and that you should be condemned to live a defeated life filled with stress, worries and anxieties!
At the cross, the divine exchange took place. As our Lord Jesus became sin with our sin, we became righteous with his righteousness