μυστήριον

Derivation

from a derivative of (to shut the mouth);

Meaning

a secret or "mystery" (through the idea of silence imposed by initiation into religious rites)

In the King James Version

mystery

Translated as

mystery (22), mysteries (5)

Where it appears

Found in 27 verses

Matthew

13:11

Mark

4:11

Luke

8:10

Romans

11:25, 16:25

1 Corinthians

2:7, 4:1, 13:2, 14:2, 15:51

Ephesians

1:9, 3:3, 3:4, 3:9, 5:32, 6:19

Colossians

1:26, 1:27, 2:2, 4:3

2 Thessalonians

2:7

1 Timothy

3:9, 3:16

Revelation

1:20, 10:7, 17:5, 17:7