The bible is clear that ability comes from God. All good things come from Him and He gives us the ability to do what He has called us to do. Philippians 4:13 says, "I can do all things through Christ who strengthens me." This verse is often quoted as a motivation for people to do things they wouldn't otherwise be able to do, but the context is actually about contentment. Paul is saying that he has learned to be content in whatever situation he finds himself in. He can do all things because Christ gives him the strength to do so.