We are all 'under construction' . When we accept Jesus as our Saviour we begin a lifelong process of spiritual growth. The Holy Spirit works in us to renew our thinking and develop qualities in us that are more Christ -like . As we go through the process we'll have plenty of opportunities to become discouraged.. Phil 1:6 Being confident of this , He who began a good work in you ( justification ) will complete it ( sanctification ) until the day of Christ Jesus ( glorification ) With this confidence we can begin each day knowing God is in control.