The Forgotten Books of Eden, by Rutherford H. Platt, Jr., [1926], at sacred-texts.com
Enoch instructs his sons not to swear either by heaven or earth, and shows God's promise, even in the mother's womb.
I SWEAR to you, my children, but I swear not by any oath, neither by heaven nor by earth, nor by any other creature which God created.
2 The Lord said: 'There is no oath in me, nor injustice, but truth.'
3 If there is no truth in men, let them swear by the words 'yea, yea,' or else, 'nay, nay!
4 And I swear to you, yea, yea, that there has been no man in his mother's womb, but that already before, even to each one there is a place prepared for the repose of the soul, and a measure
fixed how much it is intended that a man be tried in this world.
5 Yea, children, deceive not yourselves, for there has been previously prepared a place for every soul of man.