Therefore Jesus said again, “I tell you the truth, I am the gate for the sheep.

“gate” = There were sheepfolds out on the hills which were just open spaces enclosed by four walls. There was one doorway, but no door. The shepherd would lie across the doorway making it impossible for wild beasts to enter or any of the sheep to leave without walking over him and awakening him in the process. The only access to the sheepfold was through the shepherd. In the same manner, the only access into the Kingdom of God and into His Presence is through Jesus. There is no other way. (John 14:6, Eph 2:18, Heb 10:20)

John 14:6  Jesus answered, “I am the way and the truth and the life. No-one comes to the Father except through me.

Ephesians 2:18  For through him we both have access to the Father by one Spirit.

Hebrews 10:20  by a new and living way opened for us through the curtain, that is, his body,