'Virtue' in the Bible

Then He said to them, “Pay attention to what you hear. By your own standard of measurement [that is, to the extent that you study spiritual truth and apply godly wisdom] it will be measured to you [and you will be given even greater ability to respond]—and more will be given to you besides.

And Jesus, immediately knowing in himself that virtue had gone out of him, turned him about in the press, and said, Who touched my clothes?