My kitchen has the typical array of kitchen cabinets surrounding the stove, sink and food preparation area. Above the hanging wall cabinets I designed and built custom cabinets to extend the storage space higher. I carefully crafted them from wood and glass and trimmed and painted them to match the existing cabinets below them. Each time I enter the kitchen now I am able to enjoy the results of my efforts. I think I did a pretty good job of constructing the new cabinetry and my workmanship shows my woodworking talents.
When we have trusted Jesus Christ as our savior and are thus members of the body of Christ, we are considered His workmanship. Since our salvation is based upon us doing the only thing we can do without doing anything, that is to believe in what someone else has done for us, we must trust in what Christ has done for us. It is what he has accomplished for us that matters to God. Our own works or efforts are not appreciated or even accepted by God. The Bible says we are “his workmanship, created in Christ Jesus unto good works.”( Ephesians 2:10), and “Knowing that a man is not justified by the works of the law, but by the faith of Jesus Christ, even we have believed in Jesus Christ, that we might be justified by the faith of Christ, and not by the works of the law: for by the works of the law shall no flesh be justified.” (Galatians 2:16)
So, we see it is not by our own workmanship or our own faith that we are saved. It is only through the faith of Jesus Christ and his workmanship on the cross that we are able to be freed from sin and able to spend eternity with God in heaven.