like: Matthew 13:31-33; Luke 13:18-19
mustard seed: Mustard, σιναπι: strong:G4615, is a well-known plant of the tetradynamia siliquosa: class, distinguished by its yellow cruciform flowers, with expanding calyx, and its pods smooth, square, and close to the stem. Its seed was probably the smallest known to the Jews; and though its ordinary height does not exceed four feet, yet a species grows to the height of from three to five cubits, with a tapering, ligneous stalk, and spreading branches.
is less than: Genesis 22:17-18; Psalms 72:16-19; Isaiah 2:2-3, Isaiah 9:7, Isaiah 49:6-7, Isaiah 53:2, Isaiah 53:12, Isaiah 54:1-3; Isaiah 60:22; Ezekiel 17:22-24; Daniel 2:34-35, Daniel 2:44-45; Amos 9:11-15; Micah 4:1-2; Zechariah 2:11, Zechariah 8:20-23, Zechariah 12:8, Zechariah 14:6-9; Malachi 1:11; Acts 2:41, Acts 4:4, Acts 5:14, Acts 19:20; Acts 21:20; Revelation 11:15, Revelation 20:1-6