NET
15 and how from infancy you have known the holy writings, which are able to give you wisdom for salvation through faith in Christ Jesus.
Darby
15 and that from a child thou hast known the sacred letters, which are able to make thee wise unto salvation, through faith which [is] in Christ Jesus.
KJV
15 And that from a child thou hast known the holy scriptures, which are able to make thee wise unto salvation through faith which is in Christ Jesus.