לֹא־נִכְחַ֥ד עָצְמִ֗י מִ֫מֶּ֥ךָּ אֲשֶׁר־עֻשֵּׂ֥יתִי בַסֵּ֑תֶר רֻ֝קַּ֗מְתִּי בְּֽתַחְתִּיּ֥וֹת אָֽרֶץ׃
My frame was not hidden from Thee, When I was made in secret, And curiously wrought in the lowest parts of the earth.
Read halakhic rulings (Jewish law) on Psalms 139:15: and classical halakhic sources.