If you've ever visited a government building, it's obvious that to have access to certain areas, you need a badge. This tells security who you are and your access level. Your badge determines where you can go. To get a badge, you either need to work there or be a visitor who has been cleared with security. And even then you may find doors that remain locked.
It is frowned upon at these establishments to "hold the door" for someone who has forgotten or lost their badge. Holding the door leaves the building open to anyone. The one who holds the door better be sure they know who they're letting in, or face the consequences of their boss.
I just realized today as my own badge unlocked a door for me at work...so many try to get to heaven by their own badge. They figure that their accomplishments, their morals or simply being born to Christian parents gives them full access to heaven. But you know what? There is only one who has full access: Jesus. He has full security clearance that gives Him the ultimate access: Heaven's throne. When you realize that's all it takes--you knowing Christ and Christ knowing you--you will have the assurance that one day you'll see Him with His foot in heaven's door and beckoning with an outstretched arm saying, "Come on, I'm holding the door for you!"
Get to know Him today...check out the book of John in the Bible's New Testament.
Jesus said to him, "I am the way, and the truth, and the life; no one comes to the Father but through Me.