Charles Spurgeon Commentary Matthew 19:10

"The disciples say unto him, If the case of the man is so with his wife, it is not expedient to marry." — Matthew 19:10 (ASV)

They had come to look upon the ease of slipping the marriage-knot as a sort of relief, and on marriage itself, without the possibility of escaping from it by divorce, as an evil thing, or at least as very likely to prove to be so. Better not marry if you marry for life. This seemed to be their notion. Even his disciples, looking at the risks of unhappy married life, concluded that it would be better to remain single. They said, “It is good not to marry,” and there was a measure of truth in their declaration.