Once we accept Christ as our Lord, Savior, and Master we get a new life. Because we have accepted Christ, we daily walk in His way. Moreover, we do the things He has called us to do. Further, we do this to have the abundant victorious life God promised us through Christ (John 10:10).
The old man represents our lives without Christ. We are lost sinners. Unfortunately, even if we tried to be good on our BEST day, we are still lost sinners. Christ died to cover our sins (1 Peter 2:24). Fortunately, we are now saints! (1 Corinthians 1:2) Graciously, God looks at us through Jesus Christ. Jesus covered us! Jesus said it is finished. Done!
Now we have to put on Christ. Needless to say, we have to walk out our faith daily. We demonstrate our love for Jesus by obeying Him (John 14:15-17). So, we put off the old man and put on Christ. We shed our old man. Transforming our hearts and our minds. We are a new creation! (2 Corinthians 5:17)
The more we obey, surrender, yield ourselves to Christ and His Spirit, the easier it becomes to walk out our faith. We live with expectation and anticipation of experiencing our faith. It becomes so much a part of us that we look forward to spending time with our Father. It is what the intimate relationship with the Father is all about. Love & Blessings!