What does the Bible say about the straight and narrow gate?

In Matthew 7:13-14, Jesus contrasts two gates: the wide gate that leads to destruction and the straight gate that leads to life. He commands us to 'enter in at the straight gate,' indicating that there is only one way to salvation, which is through Him. This is not merely an invitation but a directive, underscoring the exclusivity of salvation found in Christ alone. The straight gate is narrow because it requires complete reliance on the righteousness of Christ without adding any personal merit or righteousness.