That's what Jesus said. “If you have seen Me, if you have observed what I'm like, if you have listened to My words and understood the grace and mercy and love that I shower on those who come to Me, then you know what Creator God is like.”
We who know Jesus want others to know God as we know Him. That's part of what it means to be created in His image. We are to be image bearers so that others will want to know Him also. We are to point others to the greatness of Creator God.