The entire chapter
Repentance requires action, it is more than just feeling sorry for what we have done.
The last couple of chapters give us a good understanding regarding what repentance looks like. When confronted with the fact that the people have been disobedient to God's commands Ezra's response is not, "Oh well people will be people," rather it is the reaction of a person who understands what the severity of the action is. We have sinned against God and intimacy with Him is threatened. Now instead of hiding it and covering it up Ezra wails and mourns in front of the people and publicly confesses their sin. Then having acknowledged their disobedience they come up with a plan of action, based on the Law of God they were given, to deal with the problem. The solution requires that they make the decision between continuing in their sin or turning away from the offending action in response to God's command.
Repentance goes beyond feeling sorry for our actions it requires that we recognize our sin, confess it to God and to one another and then to turn away from the God-ofending actions. Too often we say we are repentant but we do none of the above, we are simply sorry for what we did - that is remorse not repentance. God calls us to repentance not just remorse. How often we get tripped up on one of the steps towards repentance and never get to the end. We don't want to confess to our sin, or we are sorry for what we are doing but we don't want to part with it. We make excuses that it will cause more hurt if we try to go by God's standard so we continue on in our disobedience. The list goes on.
Father help me to go beyond remorse to repentance in the things that you have declared are sin. When I sin, I will come back to you even if the cost if great because in the end I want my actions to show that you are number one, there is no one else above you.