Second :

Their speech: (myth of opening the chest ), I cleared it is just making fun of Allah's prophet Muhammad (Allah bless him and grant him peace), it is faith case that Muslims believe in; we can make fun like they did, but we did not make fun like they did

Like we say to them: is you tell us about some myths that is written in the Bible, like: the myth of the body of saints coming out from graves, and the split of the temple which history denies this myth, the myth that Herod killed all the children of Bethlehem when Christ was born, the myth of the darkness of all the earth for three hours while Christ was on the cross, and the myth of golden emerods; every one can make gold emerods statue of his brother this myth story is useless, I do not know why it is mentioned in Bible I give you the reference to read them well in (the Book of 1st Samuel Chapter 6 number 6-5) and in (Chapter 5 number 6-12)

Here is it enough to quote one myth with explanation, it is:

The myth of the body of saints coming out from graves in The Book of Mathew Chapter 27 number 50-53: 50. Jesus, when he had cried again with a loud voice, yielded up the ghost. 51 . And, behold, the veil of the temple was rent in twain from the top to the bottom; and the earth did quake, and the rocks rent; 52 . And the graves were opened; and many bodies of the saints which slept arose, . 53. And came out of the graves after his resurrection, and went into the holy city, and appeared unto many.

Notice:

When Jesus died and gave up his soul as they claim; the earth did quake, rocks rent, the graves were opened and many of the laying bodies of saints arose, and they came out of the graves after the resurrection and entered the holy city. For you information this event is not mentioned in the rest of the Gospels, nor in any historical references.

From what I have mentioned is clear to the objectors : that we can make fun as well, and we do not want, they deny that Gabriel take out prophet's heart and washed it, but they do not deny that dead body saints came out from within the earth after the rocks crumble?!