If certain earthly names are considered important, how much more important must heavenly names be. What is earthly usually returns to the earth, decays, is destroyed, and is forgotten. Where now are the precious lists of Roman citizens? I say precious because one of them confessed, "I obtained this citizenship with a great price" (Acts 22:28).
But the name of heavenly citizenship, freely given by grace, can neither decay in books, nor be destroyed in monuments, nor be erased from memory. For decay, destruction, and forgetfulness have no place in heavenly citizenship.
The word of God, the living word in general, in which names must consequently and especially be received as living words, compels us in many cases to think of names with attention and seriousness. Must the wisdom of man, newly come from the Creator's hands, and his authority over the other earthly creatures be shown? The word of God ascribes to him the naming of names. It also ascribes to the names he gave such dignity that they did not need to be changed. "Whatever Adam called each living creature, that was its name" (Gen 2:19).
Must the supreme wisdom and power of God Himself be glorified? The naming of heavenly things is ascribed to Him. "He counts the number of the stars and calls them all by name" (Ps 146:4).
Must a reward, higher dignity, and blessedness be promised to one who contends for Christ and conquers? A new name is promised to him. "I will give him a white stone, and on the stone a new name written" (Rev 2:17).
What then is a name, according to the understanding of the word of God? A name is the being or property of a thing represented in a word. A name is, in a certain way, the power of a thing enclosed in a word.
For example, the name of Jesus, as the apostles themselves observed, cast out demons even in the mouths of men who had neither followed Jesus nor received the Holy Spirit. See Mk 9:38.
Therefore it is understandable how important is a "name written in heaven," or in a word, a heavenly name. It is also understandable how joyful it is to receive such a name. For a heavenly name must represent a heavenly property and contain heavenly power. "Rejoice, because your names are written in heaven," if indeed they are written there.