Wherefore, my beloved, as ye have always obeyed, not as in my presence only, but now much more in my absence, work out your own salvation with fear and trembling. For it is God which worketh in you both to will and to do of his good pleasure. (Philippians 2:12-13)

He may be working in you to confess to that fellow Christian that you were unkind in your speech or act.  Work it out.  He may be working in you to give up that line of business about which you have been doubtful lately.  Give it up. He may be working in you to be sweeter in your home, and gentler In your speech.  Begin.  He may be working in you to alter your relations with some with whom you have dealings that are not as they should be.  Alter them.  This very day let God begin to speak, and work and will’ and then work out what He works in.  God will not work apart from you, but He wants to work through you.  Let Him.  Yield to Him, and let this be the day when you shall begin to live in the power of the mighty Indwelling One.

From F. B. Meyer’s Commentary on Philippians