Known by the Trademark
IllustrationAnalogy★★★★DESIGNER clothes are known by their trademarks or designs. You can know if it’s a Tommy Hilfiger or a Ralph Lauren. They have trademarks that make them very visible and very identifiable. Those who hold an office of a unique kind can be identified by their attire.
You can know a doctor by his attire or a policeman by his attire or a judge by his attire. God has sent forth something as irrefutable evidence that we are close to God—an irrefutable test by which you can measure your own spiritual growth. In fact, so awesome is this trademark of God that He said it would be the major declaration of your faith. Jesus put it this way.
He said, “By this shall all men know that you are my disciples, that you love one another.”
The point
Designer brands bear visible trademarks; professionals wear distinctive marks of their office. God's trademark on His people is mutual love—the ultimate evidence of being His disciples.