Charles Spurgeon Commentary Luke 17:17-25

"And Jesus answering said, Were not the ten cleansed? but where are the nine? Were there none found that returned to give glory to God, save this stranger? And he said unto him, Arise, and go thy way: thy faith hath made thee whole. And being asked by the Pharisees, when the kingdom of God cometh, he answered them and said, The kingdom of God cometh not with observation: neither shall they say, Lo, here! or, There! for lo, the kingdom of God is within you. And he said unto the disciples, The days will come, when ye shall desire to see one of the days of the Son of man, and ye shall not see it. And they shall say to you, Lo, there! Lo, here! go not away, nor follow after [them]: for as the lightning, when it lighteneth out of the one part under the heaven, shineth unto the other part under heaven; so shall the Son of man be in his day. But first must he suffer many things and be rejected of this generation." — Luke 17:17-25 (ASV)

And Jesus answering said, Were there not ten cleansed? but where are the nine? There are not found that returned to give glory to God, save this stranger. And he said unto him, Arise, go thy way: thy faith hath made thee whole. And when he who demanded of the Pharisees, when the kingdom of God should come, he answered them and said, The kingdom of God cometh not with observation: Neither shall they say, Lo here! or, lo there! for, behold, the kingdom of God is within you. And he said unto the disciples, The days will come, when ye shall desire to see one of the days of the Son of man, and ye shall not see it. And they shall say to you 'See here; or, see there: go not after them, nor follow them. For as the lightning, that lighteneth out of the one part under heaven, shineth unto the other part under heaven; so shall also the Son of man be in his day. But first must he suffer many things, and be rejected of this generation.

Though our Lord purposely left much with regard to his coming indefinite, he gave his disciples two instances, from the early history of the world, of the condition in which many would be found at his appearing.