The Historical Development of the Book of Church Order

Chapter 52 : Public Prayer

Old Paragraph 5 :

Continuing Presbyterian Church 1973, Proposed text, DfW 5-5, p. 65
The posture of the people in public prayer should always be reverent and as far as possible uniform.

PCUS 1894, DfW 5-5 [§300]
The posture of the people in public prayer should always be reverent, and as far as possible uniform. The standing posture is sanctioned by Scripture, and is recommended by the practice of the primitive church, and by immemorial usage of Presbyterians.