Is the narrow road a message for believers or a message of salvation?

Why do some say that the teaching of Matthew 7:13-14 is a message for believers?

Unbelievers (7:28) and believers (5:1) were both present while the Lord spoke. As in all that He did and said, His message was a model of good preaching; He set out the truth and then called for action. Verses 13 through 27 were His summary and call for action. Such was His skill in speaking that His summary applied to all who listened. He expressed universal principles. Submission to His Word results in "life which is life indeed" (1 Timothy 6:19, RV), enjoyed both now and eternally. Disobedience to His Word results in loss, suffered both now and eternally.

We who are believers need this reminder. The value of our present life and testimony depends on uncompromising submission to His Word. The degree to which we disregard His Word is the degree to which we will suffer loss at the Bema (1 Corinthians 3:12-15).

D. Oliver