I say, use the KJV if that is what you're inclined to do. As for updating the language as you preach, isn't that part of good expository preaching? As a preacher, it's your job to make the Word understandable to the congregation, isn't it?

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Sterling Harmon
Coventry, CT
PCA
Deacon
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"Whatever is laudable in our works proceeds from the grace of God."
-- John Calvin, Institutes III:xv.3.

"Our Lord God must be a good man, to be fond of worthless fellows. I cannot like them, and yet I, myself, am one."
-- Martin Luther, Table Talk