This is one of the very few section where we can be in full agreement with Mr. Al-Kadhi's text. The reason is probably because he did not write anything himself. He quoted two verses from the Qur'an and one verse from the Torah.

He quoted these verses correctly, so everything is true. These statements are indeed in the Qur'an and in the Torah.

The only recommendation would be to chose a more modern translation. The King James Version is really archaic language.

It says in Deuteronomy 4:2:

Ye shall not add unto the word which I command you, neither shall ye diminish ought from it, that ye may keep the commandments of the LORD your God which I command you.

The translation in the New International Version reads in a much more pleasing style:

Do not add to what I command you and do not subtract from it, but keep the commands of the LORD your God that I give you.

This is obviously a very important command.

One more comment. The Qur'an quote by Mr. Al-Kadhi was

And when there came to them a messenger from Allah, Confirming what was with them, a party of the people of the book threw away the book of Allah behind their backs as if (it had been something) they did not know.
The noble Qur'an Al-Bakarah(2):101

It is known throughout history that some Jews, or some of those who come from a Christian family and even some of the people who have grown up Muslims have rejected the scriptures of their people, and have discarded them with contempt. This is nothing to be surprised about. That happens in all cultures and religions, that some people reject the faith and the scriptures of their ancestors. Some for good reason and some for sheer rebelliousness. But that doesn't mean that this rejection by some people corrupts these scriptures. there is also the other party of them who were true believers and who handed on the holy books to the next generation.