Theophylact of Ohrid
Catena Aurea · Johannesevangelium 11
These things said he: and after that he saith unto them, Our friend Lazarus sleepeth; but I go that I may awake him out of sleep. Then said his disciples, Lord, if he sleep, he shall do well. Howbeit Jesus spake of his death: but they thought that he had spoken of taking of rest in sleep. Then said Jesus unto them plainly, Lazarus is dead. And I am glad for your sakes I was not there, to the intent ye may believe; nevertheless let us go unto him. Then said Thomas, which is called Didymus, unto his fellowdisciples, Let us also go, that we may die with him. And I am glad for your sakes that I was not there, that ye might believe; i. e. seeing My marvellous power of knowing a thing I have neither seen nor heard. The disciples already believed in Him in consequence of His miracles; so that their faith had not now to begin, but only to increase. That ye might believe, means, believe more deeply, more firmly.
Some have understood this place thus. I rejoice, He says, for your sakes; for if I had been there, I should have only cured a sick man; which is but an inferior sign of power. But since in My absence he has died, ye will now see that I can raise even the dead putrefying body; and your faith will be strengthened.