John 4:22 in the King James Version
Ye worship ye know not what: we know what we worship: for salvation is of the Jews.
Context
21 Jesus said to her, “Woman, believe me, the hour is coming when neither in this mountain nor in Jerusalem will you worship the Father.
22 You worship that which you don’t know. We worship that which we know; for salvation is from the Jews.
23 But the hour comes, and now is, when the true worshipers will worship the Father in spirit and truth, for the Father seeks such to be his worshipers.