وَٱصْطَنَعْتُكَ لِنَفْسِى
Wa i st anaAAtuka linafsee for I have chosen thee for Mine Own service.
 - Mohammad Asad
I have moulded you for My service.
 - Muhammad Farooq-i-Azam Malik
And I have selected you for My service.
 - Mustafa Khattab
And I have attached thee to Myself.
 - Marmaduke Pickthall
"And I have prepared thee for Myself (for service)"...
 - Abdullah Yusuf Ali