John 11:14

He said these things, and after that, he said to them, “Our friend Lazarus has fallen asleep, but I am going so that I may awake him out of sleep.”

The disciples therefore said, “Lord, if he has fallen asleep, he will recover.”

Now Jesus had spoken of his death, but they thought that he spoke of taking rest in sleep.

I am glad for your sakes that I was not there, so that you may believe. Nevertheless, let’s go to him.”

Thomas therefore, who is called Didymus, said to his fellow disciples, “Let’s also go, that we may die with him.”

So when Jesus came, he found that he had been in the tomb four days already.