Exodus 38:13 KJV
And for the east side eastward fifty cubits.
Exodus 38:13, King James Version
In context
12 And for the west side were hangings of fifty cubits, their pillars ten, and their sockets ten; the hooks of the pillars and their fillets of silver.
13 And for the east side eastward fifty cubits.
14 The hangings of the one side of the gate were fifteen cubits; their pillars three, and their sockets three.