We must go back again and again

“At the root of all our disobedience are particular ways in which we continue to seek control of our lives through systems of works-righteousness. The way to progress as a Christian is to continually repent and uproot these systems the same way we become Christians, namely by the vivid depiction (and re-depiction) of Christ’s saving work for us, and the abandoning of self-trusting efforts to complete ourselves. We must go back again and again to the gospel of Christ-crucified, so that our hearts are more deeply gripped by the reality of what he did and who we are in him.” Tim Keller

"Now I would remind you, brothers, of the gospel I preached to you, which you received, in which you stand, and by which you are being saved:... that Christ died for our sins in accordance with the Scriptures,  that he was buried, that he was raised on the third day in accordance with the Scriptures." I Corinthians 15:1-4