“Repent therefore, and turn back, that your sins may be blotted out, that times of refreshing may come from the presence of the Lord, and that he may send the Christ appointed for you, Jesus,”
Acts 3:19-20 ESV

I once worked with a man who was, what could be called, a problem child. I don't say that because he a troublemaker, it was more that he stumbled into mistakes or failed to successfully finish projects because he would lose focus, or fail to pay attention to the big picture of circumstances. The sad thing was, he was very frustrated because he wanted to advance in the company, but he couldn't see that in order to move up he had to first show himself as being able to take care of the basics. I think our walk of faith is like that sometimes; we want to know the peace of God and the promises of God but we don't take care of the basic requirements that are needed to open the door. What are those basic requirements? They are the things such as salvation, prayer, obedience and other essentials of the faith, and then there is the one mentioned here, the challenging call to repentance. In order to experience the refreshment of his presence we may have to first realize that there are some things we need to clear out of the doorway. Repentance just means we acknowledge our shortcomings and allow God to help us change. Refreshment comes when the obstacles between us and God get dealt with and we can enjoy the pleasure of his company. I need what God has to offer, so I need to be sure that I don't hold on to anything that would get in the way of his presence.