Watch ye therefore, and pray always, that ye may be accounted worthy to escape all these things that shall come to pass, and to stand before the Son of man. From Matthew 5 to end of chapter 7, Jesus has delivered to us what is known as The Sermon on the Mount . As He concludes the long sermon that touches on many vital subjects, He applies it to His hearers. Without application there will be no sermon.
Application means hitting the target of the hearers.
There are only two kinds of hearers, either obedient or disobedient. You hear but you do not do what you hear. You disregard what is required of you, taking it lightly. Or you may even resent and wilfully refuse to do them. The result in any case will be disastrous.