Thine eyes did see my substance, yet
being unperfect; and in thy book all [my members] were written, [which] in
continuance were fashioned, when [as yet there was] none of them.
BSB
Your eyes saw my unformed body; all my days were written in Your book and ordained for me before one of them came to be.
WEB
Your eyes saw my body. In your book they were all written, the days that were ordained for me, when as yet there were none of them.
YLT
Mine unformed substance Thine eyes saw, And on Thy book all of them are written, The days they were formed—And not one among them.