Faith

Roman 12:3 For I say, through the grace given unto me, to every man that is among you, not to think of himself more highly than he ought to think; but to think soberly, according as God hath dealt to every man the measure of faith.

James 2:18 -19 Yea, a man may say, Thou hast faith, and I have works: shew me thy faith without thy works, and I will shew thee my faith by my works.

19 Thou believest that there is one God; thou doest well: the devils also believe, and tremble.

II Corinthians 5:7 (For we walk by faith, not by sight:)