1Corinthians 1:4

1Corinthians 1:4
'the grace of God which is given you by Jesus Christ'

It seems here that the grace spoken of is God's, but given by Christ.
It seem rather to me that the same is given by the possessor of it.. God, for the preposition here, is not 'by', but 'in'

τη χαριτι του θεου τη δοθειση υμιν εν χριστω ιησου