Expositor's Bible Commentary Commentary John 10:36

"say ye of him, whom the Father sanctified and sent into the world, Thou blasphemest; because I said, I am [the] Son of God?" — John 10:36 (ASV)

Jesus unmistakably refers to himself as “God’s Son [GK 5626]” To him it was not a strained assertion but a logical statement, for he was fully aware of his relation to the Father and to the responsibility the Father had committed to him. The accusation of blasphemy seems to be utterly unreasonable in the light of that relationship.