Yechiel, the meforshim say on that gemara that Hashem was telling the malaachim that to explain even to them why this is happening, He would have to tear apart the world, show them every fiber of creation and how everything fits together.
The dubno magid gave a moshol; imagine a king who hires a tailor to make a royal garment. He gives him as many bolts of material as he asks for, and when it’s done, the king suspects that the tailor may have pocketed some of the materials, because to him it appeared that the garment couldn’t have taken up that many threads. The tailor says, do you want me to unravel the entire garment to show you how much went into it? The king backs down, not wanting to ruin this beautiful garment.