Matthew 7:13-14 NIV
[13] “Enter through the narrow gate. For wide is the gate and broad is the road that leads to destruction, and many enter through it. [14] But small is the gate and narrow the road that leads to life, and only a few find it.

John 10:7-11 NIV
[7] Therefore Jesus said again, “Very truly I tell you, I am the gate for the sheep. [8] All who have come before me are thieves and robbers, but the sheep have not listened to them. [9] I am the gate; whoever enters through me will be saved. They will come in and go out, and find pasture. [10] The thief comes only to steal and kill and destroy; I have come that they may have life, and have it to the full. [11] “I am the good shepherd. The good shepherd lays down his life for the sheep.