God does not shy away from citing the example of a mosquito, or anything above it. As for those who acknowledge, they know that it is the truth from their Lord. As for the unappreciative, they say, "What does God want with this example?" He lets many stray by it, and He guides many, but He only lets stray the evildoers.
Translation endnotes
[2:25-26] The descriptions of Hell and Paradise are allegorical. See 13:35; 17:60; 47:15; 76:16. The language of 2:25 is similar to 74:31 and may consequently imply a miraculous prophecy that might cause a great controversy in the future. The fact that the verse follows 2:23, which challenges unappreciative people regarding the miraculous nature of the Quran, supports our expectation. The Bible contains numerous verses referring to Hell. For instance: "Again, the Kingdom of Heaven is like a dragnet, that was cast into the sea, and gathered some fish of every kind, which, when it was filled, they drew up on the beach. They sat down, and gathered the good into containers, but the bad they threw away. So will it be in the end of the world. The controllers will come forth, and separate the wicked from among the righteous, and will cast them into the furnace of fire. There will be the weeping and the gnashing of teeth." (Matthew 13:47-50)