Why do shopping carts need protection? You’ve seen them in parking lots, lined up in a row corralled by guard rails. Why not leave them by your car or on the sidewalk? The next person will surely bring them into the store on their way inside. What harm can come from shopping carts scattered across the supermarket parking lot? If your car is marked with a ding or a dent on the door, you know what can happen. How about that space you thought was open but there is a cart sitting dead center. Run away carts can create a host of problems as unsuspecting drivers course down the lanes. Children and the elderly occasionally have to dodge unmanned carts. Left unattended and in the wrong place, carts can be dangerous. The carts are secured or under guard to protect people and property.
19 What purpose then does the law serve? It was added because of transgressions, till the Seed should come to whom the promise was made; and it was appointed through angels by the hand of a mediator.
23 But before faith came, we were kept under guard by the law, kept for the faith which would afterward be revealed.
Why does man need protection? God thought enough of us to put mankind under the watchful guard of the law. Man’s propensity is to live out of control, causing havoc to ourselves and others. The law was given to reveal sin and to protect us until the Seed, Jesus Christ would come. The law or guard directed us to our only means of justification which comes by faith in Christ. With saving faith we can live holy and righteous lives not because we are under guard but because we are under grace and that is the best protection of all.