Faith is not the same as belief. It is not known why, but the English language has no word for a verb meaning "to faith." So, biblical translators used the English verb "believe" to translate the Greek action verb meaning "to faith." To believe, however, is not the same today as the ancient Greek verb for faithing. This verb, pronounced "pistewo," means to
live in a relationship of trust, reliance, and commitment
to the One who by grace offers redemption through the sacrificial love of Jesus Christ. This "faith," or act of trusting, is more than a function of belief.
Believing is being convinced in your mind that something is true. For example, as a Christian, you may be convinced that Jesus Christ lived and died to redeem you from a lost and broken relationship with the Creator. Nevertheless, you may continue to trust only in yourself, thinking it is your belief that saves you. In contrast, by "faithing" you accept Jesus Christ as your Savior plus trust that God saves you by His grace. You rely on what God has done through Christ and not what you have done for yourself. Faith is the means through which God’s grace works in us.
To faith, which is to trust and rely on someone, is to place your life in God’s hands and to live in a personal relationship with God through Jesus Christ. Thus, circumstances of life may rise up against you, but if you live by faith you will trust and rely on God to sustain and carry you through the difficult time. In this way, you live in harmony with God’s will (how the Creator works in the world) in every circumstance of your life.