If ye endure chastening - That is, if you undergo, or are called to experience correction. It does not mean here, “if you endure it patiently; or if you bear up under it;” but “if you are chastised or corrected by God.” The affirmation does not relate to the manner of bearing it, but to the fact that we are disciplined.
God dealeth with you as with sons - He does not cast you off and regard you as if you were in no way related to him.
For what son is he whom the father chasteneth not - That is, he evinces toward his son the care which shows that he sustains the relation of a father. If he deserves correction, he corrects him; and he aims by all proper means to exhibit the appropriate care and character of a father. And as we receive such attention from an earthly parent, we ought to expect to receive similar notice from our Father in heaven.