From now on, we see that all the pronouns in the following incidents of KHEZR and MOSES are in dual form; which implies that JOSHUA did not accompany Khezr and Moses.
They both went on, until they reached a ship which Khezr scuttled it.
The ARABIC, ``KHARAGHA HÄ'' literally denotes that he tore it; but in connotations, it means that, Khezr must have dug a hole at the bottom of the ship in order to sink it down!
Moses was a prophet of God; how could he keep calm and quiet, when he saw something wrong happened, without objecting and forbidding it? He therefore kept not indifferent when something extraordinary was going on, that could not be interpreted with his prophetic principles, and in terms of his experiences.
Some of the great expounders of Qurän like, TABARSI, have understood the said town to have been NAZARETH at the North of Palestine which is the place in which Jesus Christ was born.