Everyone who believes that Jesus is the Christ has become a child of God.

1 John 5:1 NLT

Faith is a response of the heart which receives what God has already done for me in Christ. Faith is relying on God’s character, standing on God’s promises, believing God’s Cross, and obeying God’s Spirit with a certainty that surpasses physical sight and human reasoning.

In my heart, I am assured that God’s faithfulness will bring God’s Word to pass in my circumstances, intervening in my life, and meeting my needs. Faith says that Christ’s shed blood is more than sufficient to forgive my sins, Christ’s death on the Cross defeats Satan’s hold on my life, and Christ’s glorious resurrection conquers the world’s influence, the flesh’s control, sin’s grip, and death’s defeat over me.

Faith, if it is to be sure and steadfast, must lay hold upon nothing else but Christ alone, and in the conflict and terrors of conscience it has nothing else to lean on but this precious pearl Christ Jesus. So, he who apprehends Christ by faith, although he be terrified with the law and oppressed with the weight of his sins, yet he may be bold to glory that he is righteous. How? Even by that precious jewel Christ Jesus, whom he possesses by faith.

Martin Luther, Commentary on Galatians (Wheaton, IL: Crossway Books,1998),99.

Faith is looking away from ourselves to another. Faith is total dependence on another. When faith stands in front of a mirror, the mirror becomes a window with the glory of Christ on the other side. Faith looks to Christ and enjoys him as the sum and judge of all that is true and good and right and beautiful and valuable and satisfying.

John Piper, “Assessing Ourselves With Our God-Assigned Measure of Faith, Part 1.”

(HT: Ray Ortlund)