en_tn/psa/139/015.md

intricately made

"made with great complexity"

the depths of the earth

This is probably a way of speaking about a mother's womb (See: rc://en/ta/man/translate/figs-metaphor)

all the days assigned to me were recorded in your book even before the first one happened

This expression implies that ancient Israelites imagined that God wrote down his plans in a book.