This section is very silly. The word bastard is only used in old English translation such as the King James Version and only means illegitimate, which is the word used in modern translations. For example the English Standard Version says “If you are left without discipline, in which all have participated, then you are illegitimate children and not sons.” (Hebrews 12:8). The NIV words it slightly differently with a different word order so uses the word “legitimate” but it has the same meaning.
The meaning of words change through time, so the word “bastard” has now become a swear word so it is no longer used in polite company. Deedat of course knows all this, so again is not being honest with his statement.