The Nineteenth, called תרומה terumah, begins [Exo 25:2], and ends [Exo 27:19].
The Twentieth, called תצוה tetsavveh, begins [Exo 27:20], and ends [Exo 30:10].
The Twenty-First, called תשא tissa, begins [Exo 30:11], and ends [Exo 34:35].
The Twenty-Second, called ויקהל vaiyakhel, begins [Exo 36:1], and ends [Exo 38:20].
The Twenty-Third, called פקודי pekudey, begins [Exo 38:21], and ends [Exo 40:38].
It will at once appear to the reader that these sections have their technical names from some remarkable word, either in the first or second verse of their commencement.