Your thoughts, words, and actions identify you every time. Paul's desire was to see the advancement of the cause of Christ rather than the decline cause. Paul did not wish to be a spectator, but a participant in the proclamation of the message. He had been classified among the chiefest of sinners, now he wishes to be classified among the chiefest of servants for The Lord. Paul had tried to hinder the work of Christ before, now he desired to help advance the message of the work of Christ.
Ability is the state of being able or competent.
Wherefore my dearly beloved, flee from idolatry. We have no problem giving Him some control, but we get into trouble when we have a problem giving Him total control. We don't affect His existence, but too many times we hinder the work that He wants to do in our lives. With the change of responsibility comes the change in prioirities. It is a change that esteems The Lord and serving Him over anything else.