By faith alone in Christ alone

John 6: 28-29  Then they asked him, What must we do to do the works God requires?  Jesus answered, The work of God is this: to believe in the one he has sent.
Romans 4: 4-5  "Now when a man works, his wages are not credited to him as a gift, but as an obligation.  However, to the man who does not work but trusts God who justifies the wicked, his faith is credited as righteousness."

“We are justified freely, for Christ’s sake, by faith, without the exertion of our own strength, gaining of merit, or doing of works.  To the age-old question, ‘What shall I do to be saved?’ the confessional answer is shocking: ‘Nothing!  Just be still; shut up and listen for once in your life to what God the Almighty, creator and redeemer, is saying to his world and to you in the death and resurrection of his Son!  Listen and believe!’”

Gerhard O. Forde, Justification by Faith (Philadelphia, 1983)

HT: Ray Ortlund