Matthew 14:10

Overview - Matthew 14
Herod's opinion of Christ.
Wherefore John Baptist was beheaded.
13 Jesus departs into a desert place,
15 where he feeds five thousand men with five loves and two fishes.
22 He walks on the sea to his disciples;
34 and landing at Gennesaret, heals the sick by the touch of the hem of his garment.
Treasury of Scripture Knowledge

Matthew 14:10  (King James Version)
And he sent, and beheaded John in the prison.

and beheaded
17:12 Matthew 21:35 Matthew 21:36 22:3-6 23:34-36 2 Chronicles 36:16 ; Jeremiah 2:30 ; Mark 6:27-29
Mark 9:13 ; Luke 9:9 ; Revelation 11:7

the prison
Josephus informs us that John the Baptist was imprisoned and beheaded by Herod in the strong castle of Machaerus, which he describes as situated about 60 stadia east of Jordan, not far from where the river discharges itself into the Dead Sea.