“I haue therfore whereof I may glory through Iesus Christ, in those things which pertaine to God.”
1611 King James Version (KJV)
15:17 I have whereof to glory through Jesus Christ - All my glorying is in and through him.
Ro 15:17 I have therefore whereof I may glory. Because of his wonderfully successful ministry among the Gentiles. Yet he glories not in himself, but only "through Jesus Christ". See 1Co 15:31. In those things which pertain to God. In his ministry as an apostle of Christ.