Romans 10:2

I bear them record [μ α ρ τ υ ρ ω]. Rev. witness. "He seems to be alluding to his conduct of former days, and to say, 'I know something of it, of that zeal '" (Godet).

Zeal of God [ζ η λ ο ν θ ε ο υ]. Rev., zeal for God. Like the phrase "faith of Christ" for "faith in Christ" (Philippians 3:9); compare Colossians 2:12; Ephesians 3:12; John 2:17, "the zeal of thine house," i e., "for thy house." Knowledge [ε π ι γ ν ω σ ι ν]. Full or correct and vital knowledge. See on ch. Romans 1:28; Romans 3:20.