'Believe' in the Bible

having known also that a man is not declared righteous by works of law, if not through the faith of Jesus Christ, also we in Christ Jesus did believe, that we might be declared righteous by the faith of Christ, and not by works of law, wherefore declared righteous by works of law shall be no flesh.'

Does God supply you with the Spirit and work miracles among you because you do the actions of the Law or because you believe what you heard?

according as Abraham did believe God, and it was reckoned to him -- to righteousness;

so then, understand that those who believe are the sons of Abraham.

Therefore, those who believe are blessed together with Abraham, the one who believed.

For if the inheritance [of what was promised] is based on [observing] the Law [as these false teachers claim], it is no longer based on a promise; however, God granted it to Abraham [as a gift] by virtue of His promise.

But the scripture hath concluded all under sin, that the promise by faith of Jesus Christ might be given to them that believe.