King James Version (KJV)
My substance was not hid from thee, when I was made in secret, and curiously wrought in the lowest parts of the earth.
Modern English
My frame was not hidden from you, when I was being made in secret, intricately woven in the depths of the earth.
Hebrew
לֹא נִכְחַ֥ד עָצְמִ֗י מִמֶּ֫ךָּ אֲשֶׁ֥ר עֻשֵּׂ֥יתִי בַסֵּ֑תֶר רֻקַּ֥מְתִּי בְּ֝תַחְתִּיּ֗וֹת אָֽרֶץ׃
loʾ nikḥad ʿaṣmiy mimeka ʾasher ʿusheytiy baseter ruqamtiy btaḥtiyvot ʾareṣ