New Living Translation
You made all the delicate, inner parts of my body and knit me together in my mother’s womb.

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 ...