NET
17 And if children, then heirs (namely, heirs of God and also fellow heirs with Christ)—if indeed we suffer with him so we may also be glorified with him.
Darby
17 And if children, heirs also: heirs of God, and Christ's joint heirs; if indeed we suffer with [him], that we may also be glorified with [him].
KJV
17 And if children, then heirs; heirs of God, and joint-heirs with Christ; if so be that we suffer with [him], that we may be also glorified together.