A.T. Robertson Commentary Romans 1:15

"So, as much as in me is, I am ready to preach the gospel to you also that are in Rome." — Romans 1:15 (ASV)

So as much as in me is I am ready (ουτω το κατ' εμε προθυμον). Literally, "Thus the according to me affair is ready" (προθυμος, old adjective, προ, θυμος). It is an awkward idiom like to εξ υμων in 12:18. The plural τα κατ' εμε we find in Php 1:12; Colossians 4:7; Ephesians 6:21.