Add punctuation: 40 And by thy sword shalt thou live and shalt serve thy brother and it shall come to pass when thou shalt have the dominion that thou shalt break his yoke from off thy neck
A: 40 And by thy sword shalt thou live, and shalt serve thy brother; and it shall come to pass when thou shalt have the dominion, that thou shalt break his yoke from off thy neck.

Add punctuation: Adjust the seat height to obtain an angle of 90 degrees between your body and arms
A: Adjust the seat height to obtain an angle of 90 degrees between your body and arms.

Add punctuation: His public espousal of Zionism was simply a significant episode at that time three decades later when Mr Balfour was dead it was to have consequences as fateful as Mr Balfours own aberration
A:
His public espousal of Zionism was simply a significant episode at that time; three decades later, when Mr. Balfour was dead, it was to have consequences as fateful as Mr. Balfour's own aberration.