αρα 686 PRT η 3588 T-NSF πιστις 4102 N-NSF εξ 1537 PREP ακοης 189 N-GSF η 3588 T-NSF δε 1161 CONJ ακοη 189 N-NSF δια 1223 PREP ρηματος 4487 N-GSN θεου 2316 N-GSM
Vincent's NT Word Studies
17. By hearing (ex akohv). The same word as report, above, and in the same sense, that which is heard.Word of God (rhmatov Qeou). The best texts read of Christ. Probably not the Gospel, but Christ's word of command or commission to its preachers; thus taking up except they be sent (ver. 15), and emphasizing the authority of the message. Belief comes through the message, and the message through the command of Christ.
Robertson's NT Word Studies
10:17 {By the word of Christ} (dia rematos cristou). "By the word about Christ" (objective genitive).