Read: 1 Chronicles 9-10
Marked: 1 Chronicles 9:24, The gatekeepers were assigned to the four directions: the east, west, north, and south.
Jerusalem had gates over which gatekeepers stood watch. The gates were kept closed against enemies, but would be opened for citizens.
As a disciple of Christ I am a gatekeeper of sorts. The invitation to know Christ is given to the four corners of the earth; all nations, tribes, and tongues.
Those who desire to know the Saviour are free to enter. But those who seek to come in except through the gate are stopped (John 10)