American Standard Version
For thou didst form my inward parts: Thou didst cover me in my mother's womb.

Berean Study Bible
For You formed my inmost being; You knit me together in my mother’s womb.

Douay-Rheims Bible
For thou hast possessed my reins: thou hast protected me from my mother's womb.

English Revised Version
For thou hast possessed my reins: thou hast covered me in my mother's womb.

King James Bible
For thou hast possessed my reins: thou hast covered me in my mother's womb.

World English Bible
For you formed my inmost being. You knit me together in my mother's womb.

Young's Literal Translation
For Thou -- Thou hast possessed my reins, Thou dost cover me in my mother's belly.

Psalm 139:13 Additional Translations ...