The answer
It means the One Who inspires the prophets to speak and teach.
The word “inspire” carries the meaning of “the Spirit.” It is intended to convey the Divine Truth, i.e. the Divine Teachings, by way of man, whereby the Holy Spirit makes the writer (prophet, apostle, or disciple) infallible, i.e. free from error, but leaves him the freedom of expression.
The Holy Spirit makes the writer infallible in what he writes. However, the life of the writer itself is not devoid of error and lapses. There is no deprivation of freedom for the writer in either expression or writing. Traditionally, we paint halos of light around the heads of the saints, to symbolise the Holy Spirit Who has descended upon them.
His Holiness Pope Tawadros II
Pope Tawadros II, My Faith: A Series of Dialogues on the Creed (Coptic Orthodox Patriarchate, 2014), 132–133.

